Finding the Fourth Proportional to 9,124.34, 12,592.53 and 5,589.90

Step by Step Solution

1. Step 1: Write the proportion equation
   9,124.34 : 12,592.53 = 5,589.90 : x
2. Step 2: Convert to fraction form
   9,124.34/12,592.53 = 5,589.90/x
3. Step 3: Cross multiply
   9,124.34x = 12,592.53 × 5,589.90
4. Step 4: Simplify right side
   9,124.34x = 70,390,983.45
5. Step 5: Solve for x
   x = 70,390,983.45/9,124.34
6. Step 6: Final answer
   x = 7,714.64