Finding the Fourth Proportional to 6,818.18, 9,411.59 and 5,987.72

Step by Step Solution

1. Step 1: Write the proportion equation
   6,818.18 : 9,411.59 = 5,987.72 : x
2. Step 2: Convert to fraction form
   6,818.18/9,411.59 = 5,987.72/x
3. Step 3: Cross multiply
   6,818.18x = 9,411.59 × 5,987.72
4. Step 4: Simplify right side
   6,818.18x = 56,354,004.17
5. Step 5: Solve for x
   x = 56,354,004.17/6,818.18
6. Step 6: Final answer
   x = 8,265.26