Finding the Fourth Proportional to 5,903.13, 8,109.87 and 5,281.89

Step by Step Solution

1. Step 1: Write the proportion equation
   5,903.13 : 8,109.87 = 5,281.89 : x
2. Step 2: Convert to fraction form
   5,903.13/8,109.87 = 5,281.89/x
3. Step 3: Cross multiply
   5,903.13x = 8,109.87 × 5,281.89
4. Step 4: Simplify right side
   5,903.13x = 42,835,441.25
5. Step 5: Solve for x
   x = 42,835,441.25/5,903.13
6. Step 6: Final answer
   x = 7,256.39