Finding the Fourth Proportional to 12,020.24, 16,584.62 and 7,773.78

Step by Step Solution

1. Step 1: Write the proportion equation
   12,020.24 : 16,584.62 = 7,773.78 : x
2. Step 2: Convert to fraction form
   12,020.24/16,584.62 = 7,773.78/x
3. Step 3: Cross multiply
   12,020.24x = 16,584.62 × 7,773.78
4. Step 4: Simplify right side
   12,020.24x = 128,925,148.39
5. Step 5: Solve for x
   x = 128,925,148.39/12,020.24
6. Step 6: Final answer
   x = 10,725.68