Finding the Fourth Proportional to 12,150.83, 16,763.54 and 7,672.88

Step by Step Solution

1. Step 1: Write the proportion equation
   12,150.83 : 16,763.54 = 7,672.88 : x
2. Step 2: Convert to fraction form
   12,150.83/16,763.54 = 7,672.88/x
3. Step 3: Cross multiply
   12,150.83x = 16,763.54 × 7,672.88
4. Step 4: Simplify right side
   12,150.83x = 128,624,508.61
5. Step 5: Solve for x
   x = 128,624,508.61/12,150.83
6. Step 6: Final answer
   x = 10,585.66