Finding the Fourth Proportional to 6,321.60, 8,721.01 and 3,802.25

Step by Step Solution

1. Step 1: Write the proportion equation
   6,321.60 : 8,721.01 = 3,802.25 : x
2. Step 2: Convert to fraction form
   6,321.60/8,721.01 = 3,802.25/x
3. Step 3: Cross multiply
   6,321.60x = 8,721.01 × 3,802.25
4. Step 4: Simplify right side
   6,321.60x = 33,159,460.27
5. Step 5: Solve for x
   x = 33,159,460.27/6,321.60
6. Step 6: Final answer
   x = 5,245.42