Finding the Fourth Proportional to 23,411.69, 32,309.15 and 13,206.15

Step by Step Solution

1. Step 1: Write the proportion equation
   23,411.69 : 32,309.15 = 13,206.15 : x
2. Step 2: Convert to fraction form
   23,411.69/32,309.15 = 13,206.15/x
3. Step 3: Cross multiply
   23,411.69x = 32,309.15 × 13,206.15
4. Step 4: Simplify right side
   23,411.69x = 426,679,415.24
5. Step 5: Solve for x
   x = 426,679,415.24/23,411.69
6. Step 6: Final answer
   x = 18,225.06