Finding the Fourth Proportional to 10,842.24, 16,248.72 and 5,637.60

Step by Step Solution

1. Step 1: Write the proportion equation
   10,842.24 : 16,248.72 = 5,637.60 : x
2. Step 2: Convert to fraction form
   10,842.24/16,248.72 = 5,637.60/x
3. Step 3: Cross multiply
   10,842.24x = 16,248.72 × 5,637.60
4. Step 4: Simplify right side
   10,842.24x = 91,603,783.87
5. Step 5: Solve for x
   x = 91,603,783.87/10,842.24
6. Step 6: Final answer
   x = 8,448.79