Finding the Fourth Proportional to 6,186.96, 8,538.20 and 3,392.72

Step by Step Solution

1. Step 1: Write the proportion equation
   6,186.96 : 8,538.20 = 3,392.72 : x
2. Step 2: Convert to fraction form
   6,186.96/8,538.20 = 3,392.72/x
3. Step 3: Cross multiply
   6,186.96x = 8,538.20 × 3,392.72
4. Step 4: Simplify right side
   6,186.96x = 28,967,721.90
5. Step 5: Solve for x
   x = 28,967,721.90/6,186.96
6. Step 6: Final answer
   x = 4,682.06