Finding the Fourth Proportional to 8,818.04, 12,167.61 and 5,280.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,818.04 : 12,167.61 = 5,280.50 : x
2. Step 2: Convert to fraction form
   8,818.04/12,167.61 = 5,280.50/x
3. Step 3: Cross multiply
   8,818.04x = 12,167.61 × 5,280.50
4. Step 4: Simplify right side
   8,818.04x = 64,251,064.61
5. Step 5: Solve for x
   x = 64,251,064.61/8,818.04
6. Step 6: Final answer
   x = 7,286.32