Finding the Fourth Proportional to 13,568.96, 20,458.04 and 13,484.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,568.96 : 20,458.04 = 13,484.72 : x
2. Step 2: Convert to fraction form
   13,568.96/20,458.04 = 13,484.72/x
3. Step 3: Cross multiply
   13,568.96x = 20,458.04 × 13,484.72
4. Step 4: Simplify right side
   13,568.96x = 275,870,941.15
5. Step 5: Solve for x
   x = 275,870,941.15/13,568.96
6. Step 6: Final answer
   x = 20,331.03