Finding the Fourth Proportional to 10,186.61, 15,276.72 and 3,946.19

Step by Step Solution

1. Step 1: Write the proportion equation
   10,186.61 : 15,276.72 = 3,946.19 : x
2. Step 2: Convert to fraction form
   10,186.61/15,276.72 = 3,946.19/x
3. Step 3: Cross multiply
   10,186.61x = 15,276.72 × 3,946.19
4. Step 4: Simplify right side
   10,186.61x = 60,284,839.70
5. Step 5: Solve for x
   x = 60,284,839.70/10,186.61
6. Step 6: Final answer
   x = 5,918.05