Finding the Fourth Proportional to 4,186.42, 5,778.61 and 3,010.91

Step by Step Solution

1. Step 1: Write the proportion equation
   4,186.42 : 5,778.61 = 3,010.91 : x
2. Step 2: Convert to fraction form
   4,186.42/5,778.61 = 3,010.91/x
3. Step 3: Cross multiply
   4,186.42x = 5,778.61 × 3,010.91
4. Step 4: Simplify right side
   4,186.42x = 17,398,838.21
5. Step 5: Solve for x
   x = 17,398,838.21/4,186.42
6. Step 6: Final answer
   x = 4,156.02