Finding the Fourth Proportional to 91,061.28, 125,591.76 and 62,760.48

Step by Step Solution

1. Step 1: Write the proportion equation
   91,061.28 : 125,591.76 = 62,760.48 : x
2. Step 2: Convert to fraction form
   91,061.28/125,591.76 = 62,760.48/x
3. Step 3: Cross multiply
   91,061.28x = 125,591.76 × 62,760.48
4. Step 4: Simplify right side
   91,061.28x = 7,882,199,141.64
5. Step 5: Solve for x
   x = 7,882,199,141.64/91,061.28
6. Step 6: Final answer
   x = 86,559.28