Finding the Fourth Proportional to 113,404.24, 156,517.04 and 65,686.64

Step by Step Solution

1. Step 1: Write the proportion equation
   113,404.24 : 156,517.04 = 65,686.64 : x
2. Step 2: Convert to fraction form
   113,404.24/156,517.04 = 65,686.64/x
3. Step 3: Cross multiply
   113,404.24x = 156,517.04 × 65,686.64
4. Step 4: Simplify right side
   113,404.24x = 10,281,078,460.35
5. Step 5: Solve for x
   x = 10,281,078,460.35/113,404.24
6. Step 6: Final answer
   x = 90,658.68