Finding the Fourth Proportional to 12,244.72, 16,878.52 and 7,988.27

Step by Step Solution

1. Step 1: Write the proportion equation
   12,244.72 : 16,878.52 = 7,988.27 : x
2. Step 2: Convert to fraction form
   12,244.72/16,878.52 = 7,988.27/x
3. Step 3: Cross multiply
   12,244.72x = 16,878.52 × 7,988.27
4. Step 4: Simplify right side
   12,244.72x = 134,830,112.79
5. Step 5: Solve for x
   x = 134,830,112.79/12,244.72
6. Step 6: Final answer
   x = 11,011.29