Finding the Fourth Proportional to 16,240.76, 22,412.31 and 8,788.76

Step by Step Solution

1. Step 1: Write the proportion equation
   16,240.76 : 22,412.31 = 8,788.76 : x
2. Step 2: Convert to fraction form
   16,240.76/22,412.31 = 8,788.76/x
3. Step 3: Cross multiply
   16,240.76x = 22,412.31 × 8,788.76
4. Step 4: Simplify right side
   16,240.76x = 196,976,301.57
5. Step 5: Solve for x
   x = 196,976,301.57/16,240.76
6. Step 6: Final answer
   x = 12,128.52