Finding the Fourth Proportional to 99,762.43, 137,675.09 and 54,443.35

Step by Step Solution

1. Step 1: Write the proportion equation
   99,762.43 : 137,675.09 = 54,443.35 : x
2. Step 2: Convert to fraction form
   99,762.43/137,675.09 = 54,443.35/x
3. Step 3: Cross multiply
   99,762.43x = 137,675.09 × 54,443.35
4. Step 4: Simplify right side
   99,762.43x = 7,495,493,111.15
5. Step 5: Solve for x
   x = 7,495,493,111.15/99,762.43
6. Step 6: Final answer
   x = 75,133.43