Finding the Fourth Proportional to 99,762.10, 137,674.62 and 54,443.01

Step by Step Solution

1. Step 1: Write the proportion equation
   99,762.10 : 137,674.62 = 54,443.01 : x
2. Step 2: Convert to fraction form
   99,762.10/137,674.62 = 54,443.01/x
3. Step 3: Cross multiply
   99,762.10x = 137,674.62 × 54,443.01
4. Step 4: Simplify right side
   99,762.10x = 7,495,420,369.22
5. Step 5: Solve for x
   x = 7,495,420,369.22/99,762.10
6. Step 6: Final answer
   x = 75,132.95