Finding the Fourth Proportional to 23,498.05, 32,429.39 and 12,889.75

Step by Step Solution

1. Step 1: Write the proportion equation
   23,498.05 : 32,429.39 = 12,889.75 : x
2. Step 2: Convert to fraction form
   23,498.05/32,429.39 = 12,889.75/x
3. Step 3: Cross multiply
   23,498.05x = 32,429.39 × 12,889.75
4. Step 4: Simplify right side
   23,498.05x = 418,006,729.75
5. Step 5: Solve for x
   x = 418,006,729.75/23,498.05
6. Step 6: Final answer
   x = 17,789.00