Finding the Fourth Proportional to 91,602.56, 126,432.96 and 59,715.92

Step by Step Solution

1. Step 1: Write the proportion equation
   91,602.56 : 126,432.96 = 59,715.92 : x
2. Step 2: Convert to fraction form
   91,602.56/126,432.96 = 59,715.92/x
3. Step 3: Cross multiply
   91,602.56x = 126,432.96 × 59,715.92
4. Step 4: Simplify right side
   91,602.56x = 7,550,060,524.72
5. Step 5: Solve for x
   x = 7,550,060,524.72/91,602.56
6. Step 6: Final answer
   x = 82,421.94