Finding the Fourth Proportional to 23,487.40, 32,411.91 and 12,876.67

Step by Step Solution

1. Step 1: Write the proportion equation
   23,487.40 : 32,411.91 = 12,876.67 : x
2. Step 2: Convert to fraction form
   23,487.40/32,411.91 = 12,876.67/x
3. Step 3: Cross multiply
   23,487.40x = 32,411.91 × 12,876.67
4. Step 4: Simplify right side
   23,487.40x = 417,357,469.14
5. Step 5: Solve for x
   x = 417,357,469.14/23,487.40
6. Step 6: Final answer
   x = 17,769.42