Finding the Fourth Proportional to 22,374.72, 30,880.98 and 12,948.48

Step by Step Solution

1. Step 1: Write the proportion equation
   22,374.72 : 30,880.98 = 12,948.48 : x
2. Step 2: Convert to fraction form
   22,374.72/30,880.98 = 12,948.48/x
3. Step 3: Cross multiply
   22,374.72x = 30,880.98 × 12,948.48
4. Step 4: Simplify right side
   22,374.72x = 399,861,751.91
5. Step 5: Solve for x
   x = 399,861,751.91/22,374.72
6. Step 6: Final answer
   x = 17,871.14