Finding the Fourth Proportional to 8,061.78, 12,087 and 3,127.26

Step by Step Solution

1. Step 1: Write the proportion equation
   8,061.78 : 12,087 = 3,127.26 : x
2. Step 2: Convert to fraction form
   8,061.78/12,087 = 3,127.26/x
3. Step 3: Cross multiply
   8,061.78x = 12,087 × 3,127.26
4. Step 4: Simplify right side
   8,061.78x = 37,799,191.62
5. Step 5: Solve for x
   x = 37,799,191.62/8,061.78
6. Step 6: Final answer
   x = 4,688.69