Finding the Fourth Proportional to 25,710.80, 35,480.18 and 14,380.31

Step by Step Solution

1. Step 1: Write the proportion equation
   25,710.80 : 35,480.18 = 14,380.31 : x
2. Step 2: Convert to fraction form
   25,710.80/35,480.18 = 14,380.31/x
3. Step 3: Cross multiply
   25,710.80x = 35,480.18 × 14,380.31
4. Step 4: Simplify right side
   25,710.80x = 510,216,111.91
5. Step 5: Solve for x
   x = 510,216,111.91/25,710.80
6. Step 6: Final answer
   x = 19,844.43