Finding the Fourth Proportional to 25,128.42, 34,678.17 and 13,952.58

Step by Step Solution

1. Step 1: Write the proportion equation
   25,128.42 : 34,678.17 = 13,952.58 : x
2. Step 2: Convert to fraction form
   25,128.42/34,678.17 = 13,952.58/x
3. Step 3: Cross multiply
   25,128.42x = 34,678.17 × 13,952.58
4. Step 4: Simplify right side
   25,128.42x = 483,849,941.18
5. Step 5: Solve for x
   x = 483,849,941.18/25,128.42
6. Step 6: Final answer
   x = 19,255.09