Finding the Fourth Proportional to 7,818.62, 10,789.71 and 4,233.61

Step by Step Solution

1. Step 1: Write the proportion equation
   7,818.62 : 10,789.71 = 4,233.61 : x
2. Step 2: Convert to fraction form
   7,818.62/10,789.71 = 4,233.61/x
3. Step 3: Cross multiply
   7,818.62x = 10,789.71 × 4,233.61
4. Step 4: Simplify right side
   7,818.62x = 45,679,421.76
5. Step 5: Solve for x
   x = 45,679,421.76/7,818.62
6. Step 6: Final answer
   x = 5,842.39