Finding the Fourth Proportional to 23,500.71, 32,432.52 and 12,890.34

Step by Step Solution

1. Step 1: Write the proportion equation
   23,500.71 : 32,432.52 = 12,890.34 : x
2. Step 2: Convert to fraction form
   23,500.71/32,432.52 = 12,890.34/x
3. Step 3: Cross multiply
   23,500.71x = 32,432.52 × 12,890.34
4. Step 4: Simplify right side
   23,500.71x = 418,066,209.86
5. Step 5: Solve for x
   x = 418,066,209.86/23,500.71
6. Step 6: Final answer
   x = 17,789.52