Finding the Fourth Proportional to 10,404.32, 15,577.60 and 8,100.32

Step by Step Solution

1. Step 1: Write the proportion equation
   10,404.32 : 15,577.60 = 8,100.32 : x
2. Step 2: Convert to fraction form
   10,404.32/15,577.60 = 8,100.32/x
3. Step 3: Cross multiply
   10,404.32x = 15,577.60 × 8,100.32
4. Step 4: Simplify right side
   10,404.32x = 126,183,544.83
5. Step 5: Solve for x
   x = 126,183,544.83/10,404.32
6. Step 6: Final answer
   x = 12,128.00