Finding the Fourth Proportional to 10,672.24, 16,009.20 and 3,655.60

Step by Step Solution

1. Step 1: Write the proportion equation
   10,672.24 : 16,009.20 = 3,655.60 : x
2. Step 2: Convert to fraction form
   10,672.24/16,009.20 = 3,655.60/x
3. Step 3: Cross multiply
   10,672.24x = 16,009.20 × 3,655.60
4. Step 4: Simplify right side
   10,672.24x = 58,523,231.52
5. Step 5: Solve for x
   x = 58,523,231.52/10,672.24
6. Step 6: Final answer
   x = 5,483.69