Finding the Fourth Proportional to 6,886.55, 10,324.06 and 3,191.42

Step by Step Solution

1. Step 1: Write the proportion equation
   6,886.55 : 10,324.06 = 3,191.42 : x
2. Step 2: Convert to fraction form
   6,886.55/10,324.06 = 3,191.42/x
3. Step 3: Cross multiply
   6,886.55x = 10,324.06 × 3,191.42
4. Step 4: Simplify right side
   6,886.55x = 32,948,395.61
5. Step 5: Solve for x
   x = 32,948,395.61/6,886.55
6. Step 6: Final answer
   x = 4,784.46