Finding the Fourth Proportional to 109,718.72, 151,411.52 and 59,417.60

Step by Step Solution

1. Step 1: Write the proportion equation
   109,718.72 : 151,411.52 = 59,417.60 : x
2. Step 2: Convert to fraction form
   109,718.72/151,411.52 = 59,417.60/x
3. Step 3: Cross multiply
   109,718.72x = 151,411.52 × 59,417.60
4. Step 4: Simplify right side
   109,718.72x = 8,996,509,130.75
5. Step 5: Solve for x
   x = 8,996,509,130.75/109,718.72
6. Step 6: Final answer
   x = 81,996.12