Finding the Fourth Proportional to 17,321.52, 23,906.52 and 12,874.80

Step by Step Solution

1. Step 1: Write the proportion equation
   17,321.52 : 23,906.52 = 12,874.80 : x
2. Step 2: Convert to fraction form
   17,321.52/23,906.52 = 12,874.80/x
3. Step 3: Cross multiply
   17,321.52x = 23,906.52 × 12,874.80
4. Step 4: Simplify right side
   17,321.52x = 307,791,663.70
5. Step 5: Solve for x
   x = 307,791,663.70/17,321.52
6. Step 6: Final answer
   x = 17,769.32