Finding the Fourth Proportional to 10,479.68, 15,722.40 and 3,554.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,479.68 : 15,722.40 = 3,554.72 : x
2. Step 2: Convert to fraction form
   10,479.68/15,722.40 = 3,554.72/x
3. Step 3: Cross multiply
   10,479.68x = 15,722.40 × 3,554.72
4. Step 4: Simplify right side
   10,479.68x = 55,888,729.73
5. Step 5: Solve for x
   x = 55,888,729.73/10,479.68
6. Step 6: Final answer
   x = 5,333.06