Finding the Fourth Proportional to 25,013.31, 34,518.12 and 13,682.70

Step by Step Solution

1. Step 1: Write the proportion equation
   25,013.31 : 34,518.12 = 13,682.70 : x
2. Step 2: Convert to fraction form
   25,013.31/34,518.12 = 13,682.70/x
3. Step 3: Cross multiply
   25,013.31x = 34,518.12 × 13,682.70
4. Step 4: Simplify right side
   25,013.31x = 472,301,080.52
5. Step 5: Solve for x
   x = 472,301,080.52/25,013.31
6. Step 6: Final answer
   x = 18,881.99