Finding the Fourth Proportional to 7,449.12, 10,279.86 and 4,092

Step by Step Solution

1. Step 1: Write the proportion equation
   7,449.12 : 10,279.86 = 4,092 : x
2. Step 2: Convert to fraction form
   7,449.12/10,279.86 = 4,092/x
3. Step 3: Cross multiply
   7,449.12x = 10,279.86 × 4,092
4. Step 4: Simplify right side
   7,449.12x = 42,065,187.12
5. Step 5: Solve for x
   x = 42,065,187.12/7,449.12
6. Step 6: Final answer
   x = 5,647.00