Finding the Fourth Proportional to 113,443.32, 156,566.46 and 65,064.12

Step by Step Solution

1. Step 1: Write the proportion equation
   113,443.32 : 156,566.46 = 65,064.12 : x
2. Step 2: Convert to fraction form
   113,443.32/156,566.46 = 65,064.12/x
3. Step 3: Cross multiply
   113,443.32x = 156,566.46 × 65,064.12
4. Step 4: Simplify right side
   113,443.32x = 10,186,858,941.42
5. Step 5: Solve for x
   x = 10,186,858,941.42/113,443.32
6. Step 6: Final answer
   x = 89,796.90