Finding the Fourth Proportional to 99,591.02, 137,433.86 and 54,269.34

Step by Step Solution

1. Step 1: Write the proportion equation
   99,591.02 : 137,433.86 = 54,269.34 : x
2. Step 2: Convert to fraction form
   99,591.02/137,433.86 = 54,269.34/x
3. Step 3: Cross multiply
   99,591.02x = 137,433.86 × 54,269.34
4. Step 4: Simplify right side
   99,591.02x = 7,458,444,875.85
5. Step 5: Solve for x
   x = 7,458,444,875.85/99,591.02
6. Step 6: Final answer
   x = 74,890.74