Finding the Fourth Proportional to 73,960.31, 102,065.24 and 42,147.68

Step by Step Solution

1. Step 1: Write the proportion equation
   73,960.31 : 102,065.24 = 42,147.68 : x
2. Step 2: Convert to fraction form
   73,960.31/102,065.24 = 42,147.68/x
3. Step 3: Cross multiply
   73,960.31x = 102,065.24 × 42,147.68
4. Step 4: Simplify right side
   73,960.31x = 4,301,812,669.69
5. Step 5: Solve for x
   x = 4,301,812,669.69/73,960.31
6. Step 6: Final answer
   x = 58,163.80