Finding the Fourth Proportional to 6,321.53, 9,484.43 and 3,978.81

Step by Step Solution

1. Step 1: Write the proportion equation
   6,321.53 : 9,484.43 = 3,978.81 : x
2. Step 2: Convert to fraction form
   6,321.53/9,484.43 = 3,978.81/x
3. Step 3: Cross multiply
   6,321.53x = 9,484.43 × 3,978.81
4. Step 4: Simplify right side
   6,321.53x = 37,736,725.03
5. Step 5: Solve for x
   x = 37,736,725.03/6,321.53
6. Step 6: Final answer
   x = 5,969.55