Finding the Fourth Proportional to 99,553.82, 137,384.28 and 54,841.82

Step by Step Solution

1. Step 1: Write the proportion equation
   99,553.82 : 137,384.28 = 54,841.82 : x
2. Step 2: Convert to fraction form
   99,553.82/137,384.28 = 54,841.82/x
3. Step 3: Cross multiply
   99,553.82x = 137,384.28 × 54,841.82
4. Step 4: Simplify right side
   99,553.82x = 7,534,403,954.59
5. Step 5: Solve for x
   x = 7,534,403,954.59/99,553.82
6. Step 6: Final answer
   x = 75,681.72