Finding the Fourth Proportional to 83,139.86, 114,728.72 and 45,406.82

Step by Step Solution

1. Step 1: Write the proportion equation
   83,139.86 : 114,728.72 = 45,406.82 : x
2. Step 2: Convert to fraction form
   83,139.86/114,728.72 = 45,406.82/x
3. Step 3: Cross multiply
   83,139.86x = 114,728.72 × 45,406.82
4. Step 4: Simplify right side
   83,139.86x = 5,209,466,337.87
5. Step 5: Solve for x
   x = 5,209,466,337.87/83,139.86
6. Step 6: Final answer
   x = 62,659.07