Finding the Fourth Proportional to 113,467.62, 156,561.58 and 65,718.12

Step by Step Solution

1. Step 1: Write the proportion equation
   113,467.62 : 156,561.58 = 65,718.12 : x
2. Step 2: Convert to fraction form
   113,467.62/156,561.58 = 65,718.12/x
3. Step 3: Cross multiply
   113,467.62x = 156,561.58 × 65,718.12
4. Step 4: Simplify right side
   113,467.62x = 10,288,932,701.83
5. Step 5: Solve for x
   x = 10,288,932,701.83/113,467.62
6. Step 6: Final answer
   x = 90,677.26