Finding the Fourth Proportional to 12,354.86, 17,043.35 and 8,374.62

Step by Step Solution

1. Step 1: Write the proportion equation
   12,354.86 : 17,043.35 = 8,374.62 : x
2. Step 2: Convert to fraction form
   12,354.86/17,043.35 = 8,374.62/x
3. Step 3: Cross multiply
   12,354.86x = 17,043.35 × 8,374.62
4. Step 4: Simplify right side
   12,354.86x = 142,731,579.78
5. Step 5: Solve for x
   x = 142,731,579.78/12,354.86
6. Step 6: Final answer
   x = 11,552.67