Finding the Fourth Proportional to 10,431.52, 15,652.05 and 5,689.42

Step by Step Solution

1. Step 1: Write the proportion equation
   10,431.52 : 15,652.05 = 5,689.42 : x
2. Step 2: Convert to fraction form
   10,431.52/15,652.05 = 5,689.42/x
3. Step 3: Cross multiply
   10,431.52x = 15,652.05 × 5,689.42
4. Step 4: Simplify right side
   10,431.52x = 89,051,086.31
5. Step 5: Solve for x
   x = 89,051,086.31/10,431.52
6. Step 6: Final answer
   x = 8,536.73