Finding the Fourth Proportional to 7,020.84, 9,688.32 and 3,877.02

Step by Step Solution

1. Step 1: Write the proportion equation
   7,020.84 : 9,688.32 = 3,877.02 : x
2. Step 2: Convert to fraction form
   7,020.84/9,688.32 = 3,877.02/x
3. Step 3: Cross multiply
   7,020.84x = 9,688.32 × 3,877.02
4. Step 4: Simplify right side
   7,020.84x = 37,561,810.41
5. Step 5: Solve for x
   x = 37,561,810.41/7,020.84
6. Step 6: Final answer
   x = 5,350.05