Finding the Fourth Proportional to 23,426.67, 32,328.84 and 12,816.30

Step by Step Solution

1. Step 1: Write the proportion equation
   23,426.67 : 32,328.84 = 12,816.30 : x
2. Step 2: Convert to fraction form
   23,426.67/32,328.84 = 12,816.30/x
3. Step 3: Cross multiply
   23,426.67x = 32,328.84 × 12,816.30
4. Step 4: Simplify right side
   23,426.67x = 414,336,112.09
5. Step 5: Solve for x
   x = 414,336,112.09/23,426.67
6. Step 6: Final answer
   x = 17,686.51