Finding the Fourth Proportional to 12,402.71, 17,116.04 and 7,099.23

Step by Step Solution

1. Step 1: Write the proportion equation
   12,402.71 : 17,116.04 = 7,099.23 : x
2. Step 2: Convert to fraction form
   12,402.71/17,116.04 = 7,099.23/x
3. Step 3: Cross multiply
   12,402.71x = 17,116.04 × 7,099.23
4. Step 4: Simplify right side
   12,402.71x = 121,510,704.65
5. Step 5: Solve for x
   x = 121,510,704.65/12,402.71
6. Step 6: Final answer
   x = 9,797.11