Finding the Fourth Proportional to 99,616.34, 137,466.55 and 54,293.37

Step by Step Solution

1. Step 1: Write the proportion equation
   99,616.34 : 137,466.55 = 54,293.37 : x
2. Step 2: Convert to fraction form
   99,616.34/137,466.55 = 54,293.37/x
3. Step 3: Cross multiply
   99,616.34x = 137,466.55 × 54,293.37
4. Step 4: Simplify right side
   99,616.34x = 7,463,522,126.04
5. Step 5: Solve for x
   x = 7,463,522,126.04/99,616.34
6. Step 6: Final answer
   x = 74,922.67