Finding the Fourth Proportional to 10,279.05, 15,403.81 and 5,840.25

Step by Step Solution

1. Step 1: Write the proportion equation
   10,279.05 : 15,403.81 = 5,840.25 : x
2. Step 2: Convert to fraction form
   10,279.05/15,403.81 = 5,840.25/x
3. Step 3: Cross multiply
   10,279.05x = 15,403.81 × 5,840.25
4. Step 4: Simplify right side
   10,279.05x = 89,962,101.35
5. Step 5: Solve for x
   x = 89,962,101.35/10,279.05
6. Step 6: Final answer
   x = 8,751.99