Finding the Fourth Proportional to 6,086.78, 9,113.70 and 3,158.93

Step by Step Solution

1. Step 1: Write the proportion equation
   6,086.78 : 9,113.70 = 3,158.93 : x
2. Step 2: Convert to fraction form
   6,086.78/9,113.70 = 3,158.93/x
3. Step 3: Cross multiply
   6,086.78x = 9,113.70 × 3,158.93
4. Step 4: Simplify right side
   6,086.78x = 28,789,540.34
5. Step 5: Solve for x
   x = 28,789,540.34/6,086.78
6. Step 6: Final answer
   x = 4,729.85