Finding the Fourth Proportional to 12,924.15, 17,823.20 and 10,280.31

Step by Step Solution

1. Step 1: Write the proportion equation
   12,924.15 : 17,823.20 = 10,280.31 : x
2. Step 2: Convert to fraction form
   12,924.15/17,823.20 = 10,280.31/x
3. Step 3: Cross multiply
   12,924.15x = 17,823.20 × 10,280.31
4. Step 4: Simplify right side
   12,924.15x = 183,227,957.78
5. Step 5: Solve for x
   x = 183,227,957.78/12,924.15
6. Step 6: Final answer
   x = 14,177.18