Finding the Fourth Proportional to 91,016.31, 125,543.88 and 60,388.74

Step by Step Solution

1. Step 1: Write the proportion equation
   91,016.31 : 125,543.88 = 60,388.74 : x
2. Step 2: Convert to fraction form
   91,016.31/125,543.88 = 60,388.74/x
3. Step 3: Cross multiply
   91,016.31x = 125,543.88 × 60,388.74
4. Step 4: Simplify right side
   91,016.31x = 7,581,436,727.91
5. Step 5: Solve for x
   x = 7,581,436,727.91/91,016.31
6. Step 6: Final answer
   x = 83,297.56