Finding the Fourth Proportional to 113,601.92, 156,745.37 and 65,200.86

Step by Step Solution

1. Step 1: Write the proportion equation
   113,601.92 : 156,745.37 = 65,200.86 : x
2. Step 2: Convert to fraction form
   113,601.92/156,745.37 = 65,200.86/x
3. Step 3: Cross multiply
   113,601.92x = 156,745.37 × 65,200.86
4. Step 4: Simplify right side
   113,601.92x = 10,219,932,599.01
5. Step 5: Solve for x
   x = 10,219,932,599.01/113,601.92
6. Step 6: Final answer
   x = 89,962.68