Finding the Fourth Proportional to 6,381.25, 8,805.72 and 3,728.50

Step by Step Solution

1. Step 1: Write the proportion equation
   6,381.25 : 8,805.72 = 3,728.50 : x
2. Step 2: Convert to fraction form
   6,381.25/8,805.72 = 3,728.50/x
3. Step 3: Cross multiply
   6,381.25x = 8,805.72 × 3,728.50
4. Step 4: Simplify right side
   6,381.25x = 32,832,127.02
5. Step 5: Solve for x
   x = 32,832,127.02/6,381.25
6. Step 6: Final answer
   x = 5,145.09