Finding the Fourth Proportional to 12,411.12, 18,620.16 and 5,020.77

Step by Step Solution

1. Step 1: Write the proportion equation
   12,411.12 : 18,620.16 = 5,020.77 : x
2. Step 2: Convert to fraction form
   12,411.12/18,620.16 = 5,020.77/x
3. Step 3: Cross multiply
   12,411.12x = 18,620.16 × 5,020.77
4. Step 4: Simplify right side
   12,411.12x = 93,487,540.72
5. Step 5: Solve for x
   x = 93,487,540.72/12,411.12
6. Step 6: Final answer
   x = 7,532.56