Finding the Fourth Proportional to 25,116.50, 34,660.86 and 13,938.50

Step by Step Solution

1. Step 1: Write the proportion equation
   25,116.50 : 34,660.86 = 13,938.50 : x
2. Step 2: Convert to fraction form
   25,116.50/34,660.86 = 13,938.50/x
3. Step 3: Cross multiply
   25,116.50x = 34,660.86 × 13,938.50
4. Step 4: Simplify right side
   25,116.50x = 483,120,397.11
5. Step 5: Solve for x
   x = 483,120,397.11/25,116.50
6. Step 6: Final answer
   x = 19,235.18