Finding the Fourth Proportional to 12,729.68, 17,566.17 and 7,690.93

Step by Step Solution

1. Step 1: Write the proportion equation
   12,729.68 : 17,566.17 = 7,690.93 : x
2. Step 2: Convert to fraction form
   12,729.68/17,566.17 = 7,690.93/x
3. Step 3: Cross multiply
   12,729.68x = 17,566.17 × 7,690.93
4. Step 4: Simplify right side
   12,729.68x = 135,100,139.92
5. Step 5: Solve for x
   x = 135,100,139.92/12,729.68
6. Step 6: Final answer
   x = 10,613.00