Finding the Fourth Proportional to 99,592.47, 137,435.82 and 54,270.84

Step by Step Solution

1. Step 1: Write the proportion equation
   99,592.47 : 137,435.82 = 54,270.84 : x
2. Step 2: Convert to fraction form
   99,592.47/137,435.82 = 54,270.84/x
3. Step 3: Cross multiply
   99,592.47x = 137,435.82 × 54,270.84
4. Step 4: Simplify right side
   99,592.47x = 7,458,757,397.49
5. Step 5: Solve for x
   x = 7,458,757,397.49/99,592.47
6. Step 6: Final answer
   x = 74,892.78