Finding the Fourth Proportional to 113,076.86, 156,046.28 and 65,330.25

Step by Step Solution

1. Step 1: Write the proportion equation
   113,076.86 : 156,046.28 = 65,330.25 : x
2. Step 2: Convert to fraction form
   113,076.86/156,046.28 = 65,330.25/x
3. Step 3: Cross multiply
   113,076.86x = 156,046.28 × 65,330.25
4. Step 4: Simplify right side
   113,076.86x = 10,194,542,215.24
5. Step 5: Solve for x
   x = 10,194,542,215.24/113,076.86
6. Step 6: Final answer
   x = 90,155.87