Finding the Fourth Proportional to 6,210.32, 8,569.86 and 3,557.12

Step by Step Solution

1. Step 1: Write the proportion equation
   6,210.32 : 8,569.86 = 3,557.12 : x
2. Step 2: Convert to fraction form
   6,210.32/8,569.86 = 3,557.12/x
3. Step 3: Cross multiply
   6,210.32x = 8,569.86 × 3,557.12
4. Step 4: Simplify right side
   6,210.32x = 30,484,020.40
5. Step 5: Solve for x
   x = 30,484,020.40/6,210.32
6. Step 6: Final answer
   x = 4,908.61