Finding the Fourth Proportional to 25,648.34, 35,394.86 and 15,038.15

Step by Step Solution

1. Step 1: Write the proportion equation
   25,648.34 : 35,394.86 = 15,038.15 : x
2. Step 2: Convert to fraction form
   25,648.34/35,394.86 = 15,038.15/x
3. Step 3: Cross multiply
   25,648.34x = 35,394.86 × 15,038.15
4. Step 4: Simplify right side
   25,648.34x = 532,273,138.72
5. Step 5: Solve for x
   x = 532,273,138.72/25,648.34
6. Step 6: Final answer
   x = 20,752.73