Finding the Fourth Proportional to 10,410.72, 15,616.32 and 3,485.28

Step by Step Solution

1. Step 1: Write the proportion equation
   10,410.72 : 15,616.32 = 3,485.28 : x
2. Step 2: Convert to fraction form
   10,410.72/15,616.32 = 3,485.28/x
3. Step 3: Cross multiply
   10,410.72x = 15,616.32 × 3,485.28
4. Step 4: Simplify right side
   10,410.72x = 54,427,247.77
5. Step 5: Solve for x
   x = 54,427,247.77/10,410.72
6. Step 6: Final answer
   x = 5,228.00