Finding the Fourth Proportional to 54,362.78, 81,540.50 and 14,916.59

Step by Step Solution

1. Step 1: Write the proportion equation
   54,362.78 : 81,540.50 = 14,916.59 : x
2. Step 2: Convert to fraction form
   54,362.78/81,540.50 = 14,916.59/x
3. Step 3: Cross multiply
   54,362.78x = 81,540.50 × 14,916.59
4. Step 4: Simplify right side
   54,362.78x = 1,216,305,724.61
5. Step 5: Solve for x
   x = 1,216,305,724.61/54,362.78
6. Step 6: Final answer
   x = 22,373.87