Finding the Fourth Proportional to 23,498.86, 32,429.11 and 12,889.18

Step by Step Solution

1. Step 1: Write the proportion equation
   23,498.86 : 32,429.11 = 12,889.18 : x
2. Step 2: Convert to fraction form
   23,498.86/32,429.11 = 12,889.18/x
3. Step 3: Cross multiply
   23,498.86x = 32,429.11 × 12,889.18
4. Step 4: Simplify right side
   23,498.86x = 417,984,486.10
5. Step 5: Solve for x
   x = 417,984,486.10/23,498.86
6. Step 6: Final answer
   x = 17,787.44