Finding the Fourth Proportional to 23,499.26, 32,429.96 and 12,889.34

Step by Step Solution

1. Step 1: Write the proportion equation
   23,499.26 : 32,429.96 = 12,889.34 : x
2. Step 2: Convert to fraction form
   23,499.26/32,429.96 = 12,889.34/x
3. Step 3: Cross multiply
   23,499.26x = 32,429.96 × 12,889.34
4. Step 4: Simplify right side
   23,499.26x = 418,000,780.63
5. Step 5: Solve for x
   x = 418,000,780.63/23,499.26
6. Step 6: Final answer
   x = 17,787.83