Finding the Fourth Proportional to 7,879.32, 10,869.06 and 5,002.74

Step by Step Solution

1. Step 1: Write the proportion equation
   7,879.32 : 10,869.06 = 5,002.74 : x
2. Step 2: Convert to fraction form
   7,879.32/10,869.06 = 5,002.74/x
3. Step 3: Cross multiply
   7,879.32x = 10,869.06 × 5,002.74
4. Step 4: Simplify right side
   7,879.32x = 54,375,081.22
5. Step 5: Solve for x
   x = 54,375,081.22/7,879.32
6. Step 6: Final answer
   x = 6,900.99