Finding the Fourth Proportional to 12,641.08, 17,439.30 and 7,605.24

Step by Step Solution

1. Step 1: Write the proportion equation
   12,641.08 : 17,439.30 = 7,605.24 : x
2. Step 2: Convert to fraction form
   12,641.08/17,439.30 = 7,605.24/x
3. Step 3: Cross multiply
   12,641.08x = 17,439.30 × 7,605.24
4. Step 4: Simplify right side
   12,641.08x = 132,630,061.93
5. Step 5: Solve for x
   x = 132,630,061.93/12,641.08
6. Step 6: Final answer
   x = 10,491.99