Finding the Fourth Proportional to 12,613.31, 17,406.20 and 6,947.94

Step by Step Solution

1. Step 1: Write the proportion equation
   12,613.31 : 17,406.20 = 6,947.94 : x
2. Step 2: Convert to fraction form
   12,613.31/17,406.20 = 6,947.94/x
3. Step 3: Cross multiply
   12,613.31x = 17,406.20 × 6,947.94
4. Step 4: Simplify right side
   12,613.31x = 120,937,250.60
5. Step 5: Solve for x
   x = 120,937,250.60/12,613.31
6. Step 6: Final answer
   x = 9,588.07