Finding the Fourth Proportional to 113,498.48, 156,621.90 and 65,097.91

Step by Step Solution

1. Step 1: Write the proportion equation
   113,498.48 : 156,621.90 = 65,097.91 : x
2. Step 2: Convert to fraction form
   113,498.48/156,621.90 = 65,097.91/x
3. Step 3: Cross multiply
   113,498.48x = 156,621.90 × 65,097.91
4. Step 4: Simplify right side
   113,498.48x = 10,195,758,790.12
5. Step 5: Solve for x
   x = 10,195,758,790.12/113,498.48
6. Step 6: Final answer
   x = 89,831.67