Finding the Fourth Proportional to 99,131.62, 148,695.47 and 39,965.94

Step by Step Solution

1. Step 1: Write the proportion equation
   99,131.62 : 148,695.47 = 39,965.94 : x
2. Step 2: Convert to fraction form
   99,131.62/148,695.47 = 39,965.94/x
3. Step 3: Cross multiply
   99,131.62x = 148,695.47 × 39,965.94
4. Step 4: Simplify right side
   99,131.62x = 5,942,754,232.29
5. Step 5: Solve for x
   x = 5,942,754,232.29/99,131.62
6. Step 6: Final answer
   x = 59,948.12