Finding the Fourth Proportional to 99,616.50, 137,470.82 and 54,294.53

Step by Step Solution

1. Step 1: Write the proportion equation
   99,616.50 : 137,470.82 = 54,294.53 : x
2. Step 2: Convert to fraction form
   99,616.50/137,470.82 = 54,294.53/x
3. Step 3: Cross multiply
   99,616.50x = 137,470.82 × 54,294.53
4. Step 4: Simplify right side
   99,616.50x = 7,463,912,601.79
5. Step 5: Solve for x
   x = 7,463,912,601.79/99,616.50
6. Step 6: Final answer
   x = 74,926.47