Finding the Fourth Proportional to 7,818.56, 10,789.62 and 4,233.55

Step by Step Solution

1. Step 1: Write the proportion equation
   7,818.56 : 10,789.62 = 4,233.55 : x
2. Step 2: Convert to fraction form
   7,818.56/10,789.62 = 4,233.55/x
3. Step 3: Cross multiply
   7,818.56x = 10,789.62 × 4,233.55
4. Step 4: Simplify right side
   7,818.56x = 45,678,395.75
5. Step 5: Solve for x
   x = 45,678,395.75/7,818.56
6. Step 6: Final answer
   x = 5,842.31