Finding the Fourth Proportional to 7,279.35, 10,909.88 and 3,114.47

Step by Step Solution

1. Step 1: Write the proportion equation
   7,279.35 : 10,909.88 = 3,114.47 : x
2. Step 2: Convert to fraction form
   7,279.35/10,909.88 = 3,114.47/x
3. Step 3: Cross multiply
   7,279.35x = 10,909.88 × 3,114.47
4. Step 4: Simplify right side
   7,279.35x = 33,978,493.96
5. Step 5: Solve for x
   x = 33,978,493.96/7,279.35
6. Step 6: Final answer
   x = 4,667.79