Finding the Fourth Proportional to 55,128.80, 82,644.00 and 25,505.89

Step by Step Solution

1. Step 1: Write the proportion equation
   55,128.80 : 82,644.00 = 25,505.89 : x
2. Step 2: Convert to fraction form
   55,128.80/82,644.00 = 25,505.89/x
3. Step 3: Cross multiply
   55,128.80x = 82,644.00 × 25,505.89
4. Step 4: Simplify right side
   55,128.80x = 2,107,908,470.90
5. Step 5: Solve for x
   x = 2,107,908,470.90/55,128.80
6. Step 6: Final answer
   x = 38,236.06