Finding the Fourth Proportional to 6,061.38, 8,361.88 and 3,936.76

Step by Step Solution

1. Step 1: Write the proportion equation
   6,061.38 : 8,361.88 = 3,936.76 : x
2. Step 2: Convert to fraction form
   6,061.38/8,361.88 = 3,936.76/x
3. Step 3: Cross multiply
   6,061.38x = 8,361.88 × 3,936.76
4. Step 4: Simplify right side
   6,061.38x = 32,918,714.71
5. Step 5: Solve for x
   x = 32,918,714.71/6,061.38
6. Step 6: Final answer
   x = 5,430.89