Finding the Fourth Proportional to 25,288.80, 34,896.06 and 13,957.57

Step by Step Solution

1. Step 1: Write the proportion equation
   25,288.80 : 34,896.06 = 13,957.57 : x
2. Step 2: Convert to fraction form
   25,288.80/34,896.06 = 13,957.57/x
3. Step 3: Cross multiply
   25,288.80x = 34,896.06 × 13,957.57
4. Step 4: Simplify right side
   25,288.80x = 487,064,200.17
5. Step 5: Solve for x
   x = 487,064,200.17/25,288.80
6. Step 6: Final answer
   x = 19,260.08