Finding the Fourth Proportional to 10,997.72, 16,496.64 and 3,602.12

Step by Step Solution

1. Step 1: Write the proportion equation
   10,997.72 : 16,496.64 = 3,602.12 : x
2. Step 2: Convert to fraction form
   10,997.72/16,496.64 = 3,602.12/x
3. Step 3: Cross multiply
   10,997.72x = 16,496.64 × 3,602.12
4. Step 4: Simplify right side
   10,997.72x = 59,422,876.88
5. Step 5: Solve for x
   x = 59,422,876.88/10,997.72
6. Step 6: Final answer
   x = 5,403.20