Finding the Fourth Proportional to 8,103.53, 12,141.47 and 5,751.90

Step by Step Solution

1. Step 1: Write the proportion equation
   8,103.53 : 12,141.47 = 5,751.90 : x
2. Step 2: Convert to fraction form
   8,103.53/12,141.47 = 5,751.90/x
3. Step 3: Cross multiply
   8,103.53x = 12,141.47 × 5,751.90
4. Step 4: Simplify right side
   8,103.53x = 69,836,521.29
5. Step 5: Solve for x
   x = 69,836,521.29/8,103.53
6. Step 6: Final answer
   x = 8,618.04