Finding the Fourth Proportional to 25,047.84, 34,566.80 and 13,870.88

Step by Step Solution

1. Step 1: Write the proportion equation
   25,047.84 : 34,566.80 = 13,870.88 : x
2. Step 2: Convert to fraction form
   25,047.84/34,566.80 = 13,870.88/x
3. Step 3: Cross multiply
   25,047.84x = 34,566.80 × 13,870.88
4. Step 4: Simplify right side
   25,047.84x = 479,471,934.78
5. Step 5: Solve for x
   x = 479,471,934.78/25,047.84
6. Step 6: Final answer
   x = 19,142.25