Finding the Fourth Proportional to 8,815.61, 12,166.31 and 4,837.55

Step by Step Solution

1. Step 1: Write the proportion equation
   8,815.61 : 12,166.31 = 4,837.55 : x
2. Step 2: Convert to fraction form
   8,815.61/12,166.31 = 4,837.55/x
3. Step 3: Cross multiply
   8,815.61x = 12,166.31 × 4,837.55
4. Step 4: Simplify right side
   8,815.61x = 58,855,084.20
5. Step 5: Solve for x
   x = 58,855,084.20/8,815.61
6. Step 6: Final answer
   x = 6,676.23