Finding the Fourth Proportional to 99,485.55, 137,285.55 and 54,162.41

Step by Step Solution

1. Step 1: Write the proportion equation
   99,485.55 : 137,285.55 = 54,162.41 : x
2. Step 2: Convert to fraction form
   99,485.55/137,285.55 = 54,162.41/x
3. Step 3: Cross multiply
   99,485.55x = 137,285.55 × 54,162.41
4. Step 4: Simplify right side
   99,485.55x = 7,435,715,559.75
5. Step 5: Solve for x
   x = 7,435,715,559.75/99,485.55
6. Step 6: Final answer
   x = 74,741.66