Finding the Fourth Proportional to 5,589.10, 7,766.43 and 5,528.34

Step by Step Solution

1. Step 1: Write the proportion equation
   5,589.10 : 7,766.43 = 5,528.34 : x
2. Step 2: Convert to fraction form
   5,589.10/7,766.43 = 5,528.34/x
3. Step 3: Cross multiply
   5,589.10x = 7,766.43 × 5,528.34
4. Step 4: Simplify right side
   5,589.10x = 42,935,465.63
5. Step 5: Solve for x
   x = 42,935,465.63/5,589.10
6. Step 6: Final answer
   x = 7,682.00