Finding the Fourth Proportional to 6,261.86, 8,638.61 and 3,742.71

Step by Step Solution

1. Step 1: Write the proportion equation
   6,261.86 : 8,638.61 = 3,742.71 : x
2. Step 2: Convert to fraction form
   6,261.86/8,638.61 = 3,742.71/x
3. Step 3: Cross multiply
   6,261.86x = 8,638.61 × 3,742.71
4. Step 4: Simplify right side
   6,261.86x = 32,331,793.32
5. Step 5: Solve for x
   x = 32,331,793.32/6,261.86
6. Step 6: Final answer
   x = 5,163.29