Finding the Fourth Proportional to 91,715.32, 126,510.96 and 60,670.18

Step by Step Solution

1. Step 1: Write the proportion equation
   91,715.32 : 126,510.96 = 60,670.18 : x
2. Step 2: Convert to fraction form
   91,715.32/126,510.96 = 60,670.18/x
3. Step 3: Cross multiply
   91,715.32x = 126,510.96 × 60,670.18
4. Step 4: Simplify right side
   91,715.32x = 7,675,442,715.17
5. Step 5: Solve for x
   x = 7,675,442,715.17/91,715.32
6. Step 6: Final answer
   x = 83,687.68