Finding the Fourth Proportional to 99,914.27, 137,877.34 and 54,590.12

Step by Step Solution

1. Step 1: Write the proportion equation
   99,914.27 : 137,877.34 = 54,590.12 : x
2. Step 2: Convert to fraction form
   99,914.27/137,877.34 = 54,590.12/x
3. Step 3: Cross multiply
   99,914.27x = 137,877.34 × 54,590.12
4. Step 4: Simplify right side
   99,914.27x = 7,526,739,573.54
5. Step 5: Solve for x
   x = 7,526,739,573.54/99,914.27
6. Step 6: Final answer
   x = 75,331.98