Finding the Fourth Proportional to 12,613.17, 17,406.17 and 7,311.06

Step by Step Solution

1. Step 1: Write the proportion equation
   12,613.17 : 17,406.17 = 7,311.06 : x
2. Step 2: Convert to fraction form
   12,613.17/17,406.17 = 7,311.06/x
3. Step 3: Cross multiply
   12,613.17x = 17,406.17 × 7,311.06
4. Step 4: Simplify right side
   12,613.17x = 127,257,484.49
5. Step 5: Solve for x
   x = 127,257,484.49/12,613.17
6. Step 6: Final answer
   x = 10,089.26