Finding the Fourth Proportional to 99,764.83, 137,676.27 and 54,443.17

Step by Step Solution

1. Step 1: Write the proportion equation
   99,764.83 : 137,676.27 = 54,443.17 : x
2. Step 2: Convert to fraction form
   99,764.83/137,676.27 = 54,443.17/x
3. Step 3: Cross multiply
   99,764.83x = 137,676.27 × 54,443.17
4. Step 4: Simplify right side
   99,764.83x = 7,495,532,572.58
5. Step 5: Solve for x
   x = 7,495,532,572.58/99,764.83
6. Step 6: Final answer
   x = 75,132.01