Finding the Fourth Proportional to 7,844.72, 10,824.56 and 4,487

Step by Step Solution

1. Step 1: Write the proportion equation
   7,844.72 : 10,824.56 = 4,487 : x
2. Step 2: Convert to fraction form
   7,844.72/10,824.56 = 4,487/x
3. Step 3: Cross multiply
   7,844.72x = 10,824.56 × 4,487
4. Step 4: Simplify right side
   7,844.72x = 48,569,800.72
5. Step 5: Solve for x
   x = 48,569,800.72/7,844.72
6. Step 6: Final answer
   x = 6,191.40