Finding the Fourth Proportional to 7,072.17, 9,759.02 and 3,885.39

Step by Step Solution

1. Step 1: Write the proportion equation
   7,072.17 : 9,759.02 = 3,885.39 : x
2. Step 2: Convert to fraction form
   7,072.17/9,759.02 = 3,885.39/x
3. Step 3: Cross multiply
   7,072.17x = 9,759.02 × 3,885.39
4. Step 4: Simplify right side
   7,072.17x = 37,917,598.72
5. Step 5: Solve for x
   x = 37,917,598.72/7,072.17
6. Step 6: Final answer
   x = 5,361.52