Finding the Fourth Proportional to 8,547.50, 12,812.42 and 3,620.18

Step by Step Solution

1. Step 1: Write the proportion equation
   8,547.50 : 12,812.42 = 3,620.18 : x
2. Step 2: Convert to fraction form
   8,547.50/12,812.42 = 3,620.18/x
3. Step 3: Cross multiply
   8,547.50x = 12,812.42 × 3,620.18
4. Step 4: Simplify right side
   8,547.50x = 46,383,266.64
5. Step 5: Solve for x
   x = 46,383,266.64/8,547.50
6. Step 6: Final answer
   x = 5,426.53