Finding the Fourth Proportional to 8,607.69, 12,914.98 and 3,061.42

Step by Step Solution

1. Step 1: Write the proportion equation
   8,607.69 : 12,914.98 = 3,061.42 : x
2. Step 2: Convert to fraction form
   8,607.69/12,914.98 = 3,061.42/x
3. Step 3: Cross multiply
   8,607.69x = 12,914.98 × 3,061.42
4. Step 4: Simplify right side
   8,607.69x = 39,538,138.13
5. Step 5: Solve for x
   x = 39,538,138.13/8,607.69
6. Step 6: Final answer
   x = 4,593.35