Finding the Fourth Proportional to 54,559.49, 81,839.34 and 15,116.72

Step by Step Solution

1. Step 1: Write the proportion equation
   54,559.49 : 81,839.34 = 15,116.72 : x
2. Step 2: Convert to fraction form
   54,559.49/81,839.34 = 15,116.72/x
3. Step 3: Cross multiply
   54,559.49x = 81,839.34 × 15,116.72
4. Step 4: Simplify right side
   54,559.49x = 1,237,141,978.57
5. Step 5: Solve for x
   x = 1,237,141,978.57/54,559.49
6. Step 6: Final answer
   x = 22,675.10