Finding the Fourth Proportional to 9,003.24, 13,496.28 and 3,156.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,003.24 : 13,496.28 = 3,156.12 : x
2. Step 2: Convert to fraction form
   9,003.24/13,496.28 = 3,156.12/x
3. Step 3: Cross multiply
   9,003.24x = 13,496.28 × 3,156.12
4. Step 4: Simplify right side
   9,003.24x = 42,595,879.23
5. Step 5: Solve for x
   x = 42,595,879.23/9,003.24
6. Step 6: Final answer
   x = 4,731.17