Finding the Fourth Proportional to 25,085.71, 34,618.01 and 13,755.17

Step by Step Solution

1. Step 1: Write the proportion equation
   25,085.71 : 34,618.01 = 13,755.17 : x
2. Step 2: Convert to fraction form
   25,085.71/34,618.01 = 13,755.17/x
3. Step 3: Cross multiply
   25,085.71x = 34,618.01 × 13,755.17
4. Step 4: Simplify right side
   25,085.71x = 476,176,612.61
5. Step 5: Solve for x
   x = 476,176,612.61/25,085.71
6. Step 6: Final answer
   x = 18,981.99