Finding the Fourth Proportional to 91,016.46, 125,566.61 and 55,193.40

Step by Step Solution

1. Step 1: Write the proportion equation
   91,016.46 : 125,566.61 = 55,193.40 : x
2. Step 2: Convert to fraction form
   91,016.46/125,566.61 = 55,193.40/x
3. Step 3: Cross multiply
   91,016.46x = 125,566.61 × 55,193.40
4. Step 4: Simplify right side
   91,016.46x = 6,930,447,856.41
5. Step 5: Solve for x
   x = 6,930,447,856.41/91,016.46
6. Step 6: Final answer
   x = 76,144.99