Finding the Fourth Proportional to 10,016.04, 13,821.96 and 5,478.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,016.04 : 13,821.96 = 5,478.72 : x
2. Step 2: Convert to fraction form
   10,016.04/13,821.96 = 5,478.72/x
3. Step 3: Cross multiply
   10,016.04x = 13,821.96 × 5,478.72
4. Step 4: Simplify right side
   10,016.04x = 75,726,648.69
5. Step 5: Solve for x
   x = 75,726,648.69/10,016.04
6. Step 6: Final answer
   x = 7,560.54