Finding the Fourth Proportional to 7,081.50, 9,774.90 and 4,287

Step by Step Solution

1. Step 1: Write the proportion equation
   7,081.50 : 9,774.90 = 4,287 : x
2. Step 2: Convert to fraction form
   7,081.50/9,774.90 = 4,287/x
3. Step 3: Cross multiply
   7,081.50x = 9,774.90 × 4,287
4. Step 4: Simplify right side
   7,081.50x = 41,904,996.30
5. Step 5: Solve for x
   x = 41,904,996.30/7,081.50
6. Step 6: Final answer
   x = 5,917.53