Finding the Fourth Proportional to 12,574.78, 17,354.23 and 8,107.83

Step by Step Solution

1. Step 1: Write the proportion equation
   12,574.78 : 17,354.23 = 8,107.83 : x
2. Step 2: Convert to fraction form
   12,574.78/17,354.23 = 8,107.83/x
3. Step 3: Cross multiply
   12,574.78x = 17,354.23 × 8,107.83
4. Step 4: Simplify right side
   12,574.78x = 140,705,126.35
5. Step 5: Solve for x
   x = 140,705,126.35/12,574.78
6. Step 6: Final answer
   x = 11,189.47