Finding the Fourth Proportional to 23,508.02, 32,443.18 and 12,899.72

Step by Step Solution

1. Step 1: Write the proportion equation
   23,508.02 : 32,443.18 = 12,899.72 : x
2. Step 2: Convert to fraction form
   23,508.02/32,443.18 = 12,899.72/x
3. Step 3: Cross multiply
   23,508.02x = 32,443.18 × 12,899.72
4. Step 4: Simplify right side
   23,508.02x = 418,507,937.91
5. Step 5: Solve for x
   x = 418,507,937.91/23,508.02
6. Step 6: Final answer
   x = 17,802.77