Finding the Fourth Proportional to 6,453.04, 8,911.25 and 4,188.28

Step by Step Solution

1. Step 1: Write the proportion equation
   6,453.04 : 8,911.25 = 4,188.28 : x
2. Step 2: Convert to fraction form
   6,453.04/8,911.25 = 4,188.28/x
3. Step 3: Cross multiply
   6,453.04x = 8,911.25 × 4,188.28
4. Step 4: Simplify right side
   6,453.04x = 37,322,810.15
5. Step 5: Solve for x
   x = 37,322,810.15/6,453.04
6. Step 6: Final answer
   x = 5,783.76