Finding the Fourth Proportional to 12,613.05, 17,406.12 and 6,947.82

Step by Step Solution

1. Step 1: Write the proportion equation
   12,613.05 : 17,406.12 = 6,947.82 : x
2. Step 2: Convert to fraction form
   12,613.05/17,406.12 = 6,947.82/x
3. Step 3: Cross multiply
   12,613.05x = 17,406.12 × 6,947.82
4. Step 4: Simplify right side
   12,613.05x = 120,934,588.66
5. Step 5: Solve for x
   x = 120,934,588.66/12,613.05
6. Step 6: Final answer
   x = 9,588.05