Finding the Fourth Proportional to 113,727.70, 156,951.58 and 65,997.10

Step by Step Solution

1. Step 1: Write the proportion equation
   113,727.70 : 156,951.58 = 65,997.10 : x
2. Step 2: Convert to fraction form
   113,727.70/156,951.58 = 65,997.10/x
3. Step 3: Cross multiply
   113,727.70x = 156,951.58 × 65,997.10
4. Step 4: Simplify right side
   113,727.70x = 10,358,349,120.42
5. Step 5: Solve for x
   x = 10,358,349,120.42/113,727.70
6. Step 6: Final answer
   x = 91,080.27