Finding the Fourth Proportional to 8,066.61, 12,100.71 and 3,136.65

Step by Step Solution

1. Step 1: Write the proportion equation
   8,066.61 : 12,100.71 = 3,136.65 : x
2. Step 2: Convert to fraction form
   8,066.61/12,100.71 = 3,136.65/x
3. Step 3: Cross multiply
   8,066.61x = 12,100.71 × 3,136.65
4. Step 4: Simplify right side
   8,066.61x = 37,955,692.02
5. Step 5: Solve for x
   x = 37,955,692.02/8,066.61
6. Step 6: Final answer
   x = 4,705.28