Finding the Fourth Proportional to 23,498.06, 32,429.40 and 12,889.76

Step by Step Solution

1. Step 1: Write the proportion equation
   23,498.06 : 32,429.40 = 12,889.76 : x
2. Step 2: Convert to fraction form
   23,498.06/32,429.40 = 12,889.76/x
3. Step 3: Cross multiply
   23,498.06x = 32,429.40 × 12,889.76
4. Step 4: Simplify right side
   23,498.06x = 418,006,956.35
5. Step 5: Solve for x
   x = 418,006,956.35/23,498.06
6. Step 6: Final answer
   x = 17,789.00