Finding the Fourth Proportional to 12,579.48, 17,358.83 and 6,914.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,579.48 : 17,358.83 = 6,914.10 : x
2. Step 2: Convert to fraction form
   12,579.48/17,358.83 = 6,914.10/x
3. Step 3: Cross multiply
   12,579.48x = 17,358.83 × 6,914.10
4. Step 4: Simplify right side
   12,579.48x = 120,020,686.50
5. Step 5: Solve for x
   x = 120,020,686.50/12,579.48
6. Step 6: Final answer
   x = 9,540.99