Finding the Fourth Proportional to 10,449, 15,677.55 and 3,523.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,449 : 15,677.55 = 3,523.50 : x
2. Step 2: Convert to fraction form
   10,449/15,677.55 = 3,523.50/x
3. Step 3: Cross multiply
   10,449x = 15,677.55 × 3,523.50
4. Step 4: Simplify right side
   10,449x = 55,239,847.43
5. Step 5: Solve for x
   x = 55,239,847.43/10,449
6. Step 6: Final answer
   x = 5,286.62