Finding the Fourth Proportional to 6,543.86, 9,031.37 and 3,892.73

Step by Step Solution

1. Step 1: Write the proportion equation
   6,543.86 : 9,031.37 = 3,892.73 : x
2. Step 2: Convert to fraction form
   6,543.86/9,031.37 = 3,892.73/x
3. Step 3: Cross multiply
   6,543.86x = 9,031.37 × 3,892.73
4. Step 4: Simplify right side
   6,543.86x = 35,156,620.32
5. Step 5: Solve for x
   x = 35,156,620.32/6,543.86
6. Step 6: Final answer
   x = 5,372.46