Finding the Fourth Proportional to 12,616.38, 17,410.35 and 7,311.06

Step by Step Solution

1. Step 1: Write the proportion equation
   12,616.38 : 17,410.35 = 7,311.06 : x
2. Step 2: Convert to fraction form
   12,616.38/17,410.35 = 7,311.06/x
3. Step 3: Cross multiply
   12,616.38x = 17,410.35 × 7,311.06
4. Step 4: Simplify right side
   12,616.38x = 127,288,113.47
5. Step 5: Solve for x
   x = 127,288,113.47/12,616.38
6. Step 6: Final answer
   x = 10,089.12