Finding the Fourth Proportional to 71,301.65, 107,057.61 and 39,773.31

Step by Step Solution

1. Step 1: Write the proportion equation
   71,301.65 : 107,057.61 = 39,773.31 : x
2. Step 2: Convert to fraction form
   71,301.65/107,057.61 = 39,773.31/x
3. Step 3: Cross multiply
   71,301.65x = 107,057.61 × 39,773.31
4. Step 4: Simplify right side
   71,301.65x = 4,258,035,510.39
5. Step 5: Solve for x
   x = 4,258,035,510.39/71,301.65
6. Step 6: Final answer
   x = 59,718.61