Finding the Fourth Proportional to 10,245.16, 15,360.72 and 3,671.20

Step by Step Solution

1. Step 1: Write the proportion equation
   10,245.16 : 15,360.72 = 3,671.20 : x
2. Step 2: Convert to fraction form
   10,245.16/15,360.72 = 3,671.20/x
3. Step 3: Cross multiply
   10,245.16x = 15,360.72 × 3,671.20
4. Step 4: Simplify right side
   10,245.16x = 56,392,275.26
5. Step 5: Solve for x
   x = 56,392,275.26/10,245.16
6. Step 6: Final answer
   x = 5,504.28