Finding the Fourth Proportional to 16,179.30, 24,279.32 and 7,854.78

Step by Step Solution

1. Step 1: Write the proportion equation
   16,179.30 : 24,279.32 = 7,854.78 : x
2. Step 2: Convert to fraction form
   16,179.30/24,279.32 = 7,854.78/x
3. Step 3: Cross multiply
   16,179.30x = 24,279.32 × 7,854.78
4. Step 4: Simplify right side
   16,179.30x = 190,708,677.88
5. Step 5: Solve for x
   x = 190,708,677.88/16,179.30
6. Step 6: Final answer
   x = 11,787.20