Finding the Fourth Proportional to 12,613.02, 17,405.25 and 6,947.57

Step by Step Solution

1. Step 1: Write the proportion equation
   12,613.02 : 17,405.25 = 6,947.57 : x
2. Step 2: Convert to fraction form
   12,613.02/17,405.25 = 6,947.57/x
3. Step 3: Cross multiply
   12,613.02x = 17,405.25 × 6,947.57
4. Step 4: Simplify right side
   12,613.02x = 120,924,105.72
5. Step 5: Solve for x
   x = 120,924,105.72/12,613.02
6. Step 6: Final answer
   x = 9,587.24