Finding the Fourth Proportional to 9,089.85, 12,544.15 and 5,057.00

Step by Step Solution

1. Step 1: Write the proportion equation
   9,089.85 : 12,544.15 = 5,057.00 : x
2. Step 2: Convert to fraction form
   9,089.85/12,544.15 = 5,057.00/x
3. Step 3: Cross multiply
   9,089.85x = 12,544.15 × 5,057.00
4. Step 4: Simplify right side
   9,089.85x = 63,435,747.71
5. Step 5: Solve for x
   x = 63,435,747.71/9,089.85
6. Step 6: Final answer
   x = 6,978.74