Finding the Fourth Proportional to 23,428.72, 32,332.41 and 12,818.36

Step by Step Solution

1. Step 1: Write the proportion equation
   23,428.72 : 32,332.41 = 12,818.36 : x
2. Step 2: Convert to fraction form
   23,428.72/32,332.41 = 12,818.36/x
3. Step 3: Cross multiply
   23,428.72x = 32,332.41 × 12,818.36
4. Step 4: Simplify right side
   23,428.72x = 414,448,390.22
5. Step 5: Solve for x
   x = 414,448,390.22/23,428.72
6. Step 6: Final answer
   x = 17,689.76