Finding the Fourth Proportional to 91,554, 126,337.60 and 55,740.04

Step by Step Solution

1. Step 1: Write the proportion equation
   91,554 : 126,337.60 = 55,740.04 : x
2. Step 2: Convert to fraction form
   91,554/126,337.60 = 55,740.04/x
3. Step 3: Cross multiply
   91,554x = 126,337.60 × 55,740.04
4. Step 4: Simplify right side
   91,554x = 7,042,062,877.50
5. Step 5: Solve for x
   x = 7,042,062,877.50/91,554
6. Step 6: Final answer
   x = 76,917.04