Finding the Fourth Proportional to 7,449, 10,279.89 and 4,092.13

Step by Step Solution

1. Step 1: Write the proportion equation
   7,449 : 10,279.89 = 4,092.13 : x
2. Step 2: Convert to fraction form
   7,449/10,279.89 = 4,092.13/x
3. Step 3: Cross multiply
   7,449x = 10,279.89 × 4,092.13
4. Step 4: Simplify right side
   7,449x = 42,066,620.57
5. Step 5: Solve for x
   x = 42,066,620.57/7,449
6. Step 6: Final answer
   x = 5,647.28