Finding the Fourth Proportional to 99,819.52, 137,751.02 and 55,107.52

Step by Step Solution

1. Step 1: Write the proportion equation
   99,819.52 : 137,751.02 = 55,107.52 : x
2. Step 2: Convert to fraction form
   99,819.52/137,751.02 = 55,107.52/x
3. Step 3: Cross multiply
   99,819.52x = 137,751.02 × 55,107.52
4. Step 4: Simplify right side
   99,819.52x = 7,591,117,089.67
5. Step 5: Solve for x
   x = 7,591,117,089.67/99,819.52
6. Step 6: Final answer
   x = 76,048.42