Finding the Fourth Proportional to 10,020.74, 15,016.72 and 5,628.96

Step by Step Solution

1. Step 1: Write the proportion equation
   10,020.74 : 15,016.72 = 5,628.96 : x
2. Step 2: Convert to fraction form
   10,020.74/15,016.72 = 5,628.96/x
3. Step 3: Cross multiply
   10,020.74x = 15,016.72 × 5,628.96
4. Step 4: Simplify right side
   10,020.74x = 84,528,516.21
5. Step 5: Solve for x
   x = 84,528,516.21/10,020.74
6. Step 6: Final answer
   x = 8,435.36