Finding the Fourth Proportional to 25,562.88, 35,268.57 and 15,488.10

Step by Step Solution

1. Step 1: Write the proportion equation
   25,562.88 : 35,268.57 = 15,488.10 : x
2. Step 2: Convert to fraction form
   25,562.88/35,268.57 = 15,488.10/x
3. Step 3: Cross multiply
   25,562.88x = 35,268.57 × 15,488.10
4. Step 4: Simplify right side
   25,562.88x = 546,243,139.02
5. Step 5: Solve for x
   x = 546,243,139.02/25,562.88
6. Step 6: Final answer
   x = 21,368.61