Finding the Fourth Proportional to 6,962.09, 9,607.88 and 3,978.41

Step by Step Solution

1. Step 1: Write the proportion equation
   6,962.09 : 9,607.88 = 3,978.41 : x
2. Step 2: Convert to fraction form
   6,962.09/9,607.88 = 3,978.41/x
3. Step 3: Cross multiply
   6,962.09x = 9,607.88 × 3,978.41
4. Step 4: Simplify right side
   6,962.09x = 38,224,065.98
5. Step 5: Solve for x
   x = 38,224,065.98/6,962.09
6. Step 6: Final answer
   x = 5,490.31