Finding the Fourth Proportional to 3,052.05, 4,155.27 and 3,042.60

Step by Step Solution

1. Step 1: Write the proportion equation
   3,052.05 : 4,155.27 = 3,042.60 : x
2. Step 2: Convert to fraction form
   3,052.05/4,155.27 = 3,042.60/x
3. Step 3: Cross multiply
   3,052.05x = 4,155.27 × 3,042.60
4. Step 4: Simplify right side
   3,052.05x = 12,642,824.50
5. Step 5: Solve for x
   x = 12,642,824.50/3,052.05
6. Step 6: Final answer
   x = 4,142.40