Finding the Fourth Proportional to 91,717.32, 126,513.72 and 60,672.18

Step by Step Solution

1. Step 1: Write the proportion equation
   91,717.32 : 126,513.72 = 60,672.18 : x
2. Step 2: Convert to fraction form
   91,717.32/126,513.72 = 60,672.18/x
3. Step 3: Cross multiply
   91,717.32x = 126,513.72 × 60,672.18
4. Step 4: Simplify right side
   91,717.32x = 7,675,863,192.31
5. Step 5: Solve for x
   x = 7,675,863,192.31/91,717.32
6. Step 6: Final answer
   x = 83,690.44