Finding the Fourth Proportional to 99,417.38, 137,195.98 and 54,705.38

Step by Step Solution

1. Step 1: Write the proportion equation
   99,417.38 : 137,195.98 = 54,705.38 : x
2. Step 2: Convert to fraction form
   99,417.38/137,195.98 = 54,705.38/x
3. Step 3: Cross multiply
   99,417.38x = 137,195.98 × 54,705.38
4. Step 4: Simplify right side
   99,417.38x = 7,505,357,397.63
5. Step 5: Solve for x
   x = 7,505,357,397.63/99,417.38
6. Step 6: Final answer
   x = 75,493.42