Multi variable curve fitting

Hi,

I have training data as below: column1~3 are independent variables, column4 is response variable

    0.20   102.36  12.3   5.63
    0.36   112.3   15.6   5.703
    0.375  121.36  15.9    6.231 
    0.421  142.5   16.8    6.473
    0.524  149.25  17.98  7.01
    0.621  152.32  23.69  7.56
    0.632  157.2   23.69  7.89
    0.741  159.65  25.01  8.41
    0.795  160.2   26.47  8.87
    0.854  161.32  27.26  9.32
    0.965  163.2   27.58  9.789
    0.987  162.3   28.2    9.89

Below is my test data, and I want to do a prediction for a given dependent variables.

      10.21  163.21  28.48
      11.90  163.8   29.3
      11.98  165.13  29.56
      12.56  165.59  29.97
      12.7   165.84  30.25
      13.25  165.88  30.54
      13.42  166.05  30.81

Many thanks in advance,