Finding the Fourth Proportional to 99,641.34, 137,502.83 and 54,317.59

Step by Step Solution

1. Step 1: Write the proportion equation
   99,641.34 : 137,502.83 = 54,317.59 : x
2. Step 2: Convert to fraction form
   99,641.34/137,502.83 = 54,317.59/x
3. Step 3: Cross multiply
   99,641.34x = 137,502.83 × 54,317.59
4. Step 4: Simplify right side
   99,641.34x = 7,468,822,135.82
5. Step 5: Solve for x
   x = 7,468,822,135.82/99,641.34
6. Step 6: Final answer
   x = 74,957.06