Finding the Fourth Proportional to 7,789.43, 11,679.26 and 5,154.10

Step by Step Solution

1. Step 1: Write the proportion equation
   7,789.43 : 11,679.26 = 5,154.10 : x
2. Step 2: Convert to fraction form
   7,789.43/11,679.26 = 5,154.10/x
3. Step 3: Cross multiply
   7,789.43x = 11,679.26 × 5,154.10
4. Step 4: Simplify right side
   7,789.43x = 60,196,019.00
5. Step 5: Solve for x
   x = 60,196,019.00/7,789.43
6. Step 6: Final answer
   x = 7,727.91