Finding the Fourth Proportional to 99,834.82, 137,771 and 54,512.66

Step by Step Solution

1. Step 1: Write the proportion equation
   99,834.82 : 137,771 = 54,512.66 : x
2. Step 2: Convert to fraction form
   99,834.82/137,771 = 54,512.66/x
3. Step 3: Cross multiply
   99,834.82x = 137,771 × 54,512.66
4. Step 4: Simplify right side
   99,834.82x = 7,510,263,680.86
5. Step 5: Solve for x
   x = 7,510,263,680.86/99,834.82
6. Step 6: Final answer
   x = 75,226.90