Finding the Fourth Proportional to 10,279.23, 15,424.71 and 5,599.05

Step by Step Solution

1. Step 1: Write the proportion equation
   10,279.23 : 15,424.71 = 5,599.05 : x
2. Step 2: Convert to fraction form
   10,279.23/15,424.71 = 5,599.05/x
3. Step 3: Cross multiply
   10,279.23x = 15,424.71 × 5,599.05
4. Step 4: Simplify right side
   10,279.23x = 86,363,722.53
5. Step 5: Solve for x
   x = 86,363,722.53/10,279.23
6. Step 6: Final answer
   x = 8,401.77