Finding the Fourth Proportional to 99,335.52, 137,080.02 and 54,013.59

Step by Step Solution

1. Step 1: Write the proportion equation
   99,335.52 : 137,080.02 = 54,013.59 : x
2. Step 2: Convert to fraction form
   99,335.52/137,080.02 = 54,013.59/x
3. Step 3: Cross multiply
   99,335.52x = 137,080.02 × 54,013.59
4. Step 4: Simplify right side
   99,335.52x = 7,404,183,997.47
5. Step 5: Solve for x
   x = 7,404,183,997.47/99,335.52
6. Step 6: Final answer
   x = 74,537.12