Finding the Fourth Proportional to 8,187.40, 12,270.83 and 3,501.91

Step by Step Solution

1. Step 1: Write the proportion equation
   8,187.40 : 12,270.83 = 3,501.91 : x
2. Step 2: Convert to fraction form
   8,187.40/12,270.83 = 3,501.91/x
3. Step 3: Cross multiply
   8,187.40x = 12,270.83 × 3,501.91
4. Step 4: Simplify right side
   8,187.40x = 42,971,351.04
5. Step 5: Solve for x
   x = 42,971,351.04/8,187.40
6. Step 6: Final answer
   x = 5,248.47