Finding the Fourth Proportional to 25,061.85, 34,585.70 and 13,731.12

Step by Step Solution

1. Step 1: Write the proportion equation
   25,061.85 : 34,585.70 = 13,731.12 : x
2. Step 2: Convert to fraction form
   25,061.85/34,585.70 = 13,731.12/x
3. Step 3: Cross multiply
   25,061.85x = 34,585.70 × 13,731.12
4. Step 4: Simplify right side
   25,061.85x = 474,900,328.33
5. Step 5: Solve for x
   x = 474,900,328.33/25,061.85
6. Step 6: Final answer
   x = 18,949.13