Finding the Fourth Proportional to 8,188.10, 12,284.56 and 2,641.34

Step by Step Solution

1. Step 1: Write the proportion equation
   8,188.10 : 12,284.56 = 2,641.34 : x
2. Step 2: Convert to fraction form
   8,188.10/12,284.56 = 2,641.34/x
3. Step 3: Cross multiply
   8,188.10x = 12,284.56 × 2,641.34
4. Step 4: Simplify right side
   8,188.10x = 32,447,699.71
5. Step 5: Solve for x
   x = 32,447,699.71/8,188.10
6. Step 6: Final answer
   x = 3,962.79