Finding the Fourth Proportional to 10,499.95, 15,752.15 and 3,479.57

Step by Step Solution

1. Step 1: Write the proportion equation
   10,499.95 : 15,752.15 = 3,479.57 : x
2. Step 2: Convert to fraction form
   10,499.95/15,752.15 = 3,479.57/x
3. Step 3: Cross multiply
   10,499.95x = 15,752.15 × 3,479.57
4. Step 4: Simplify right side
   10,499.95x = 54,810,708.58
5. Step 5: Solve for x
   x = 54,810,708.58/10,499.95
6. Step 6: Final answer
   x = 5,220.09