Finding the Fourth Proportional to 25,016.80, 34,521.76 and 13,838.08

Step by Step Solution

1. Step 1: Write the proportion equation
   25,016.80 : 34,521.76 = 13,838.08 : x
2. Step 2: Convert to fraction form
   25,016.80/34,521.76 = 13,838.08/x
3. Step 3: Cross multiply
   25,016.80x = 34,521.76 × 13,838.08
4. Step 4: Simplify right side
   25,016.80x = 477,714,876.62
5. Step 5: Solve for x
   x = 477,714,876.62/25,016.80
6. Step 6: Final answer
   x = 19,095.76