Finding the Fourth Proportional to 55,139.60, 82,717.61 and 25,560.43

Step by Step Solution

1. Step 1: Write the proportion equation
   55,139.60 : 82,717.61 = 25,560.43 : x
2. Step 2: Convert to fraction form
   55,139.60/82,717.61 = 25,560.43/x
3. Step 3: Cross multiply
   55,139.60x = 82,717.61 × 25,560.43
4. Step 4: Simplify right side
   55,139.60x = 2,114,297,345.58
5. Step 5: Solve for x
   x = 2,114,297,345.58/55,139.60
6. Step 6: Final answer
   x = 38,344.44