Finding the Fourth Proportional to 25,218.50, 34,802.61 and 14,040.50

Step by Step Solution

1. Step 1: Write the proportion equation
   25,218.50 : 34,802.61 = 14,040.50 : x
2. Step 2: Convert to fraction form
   25,218.50/34,802.61 = 14,040.50/x
3. Step 3: Cross multiply
   25,218.50x = 34,802.61 × 14,040.50
4. Step 4: Simplify right side
   25,218.50x = 488,646,045.71
5. Step 5: Solve for x
   x = 488,646,045.71/25,218.50
6. Step 6: Final answer
   x = 19,376.49