Finding the Fourth Proportional to 99,362.08, 137,120.61 and 54,040.42

Step by Step Solution

1. Step 1: Write the proportion equation
   99,362.08 : 137,120.61 = 54,040.42 : x
2. Step 2: Convert to fraction form
   99,362.08/137,120.61 = 54,040.42/x
3. Step 3: Cross multiply
   99,362.08x = 137,120.61 × 54,040.42
4. Step 4: Simplify right side
   99,362.08x = 7,410,055,355.06
5. Step 5: Solve for x
   x = 7,410,055,355.06/99,362.08
6. Step 6: Final answer
   x = 74,576.29