Finding the Fourth Proportional to 25,131.42, 34,678.90 and 14,520.82

Step by Step Solution

1. Step 1: Write the proportion equation
   25,131.42 : 34,678.90 = 14,520.82 : x
2. Step 2: Convert to fraction form
   25,131.42/34,678.90 = 14,520.82/x
3. Step 3: Cross multiply
   25,131.42x = 34,678.90 × 14,520.82
4. Step 4: Simplify right side
   25,131.42x = 503,566,064.70
5. Step 5: Solve for x
   x = 503,566,064.70/25,131.42
6. Step 6: Final answer
   x = 20,037.31