Finding the Fourth Proportional to 11,353.04, 17,031.72 and 4,427.12

Step by Step Solution

1. Step 1: Write the proportion equation
   11,353.04 : 17,031.72 = 4,427.12 : x
2. Step 2: Convert to fraction form
   11,353.04/17,031.72 = 4,427.12/x
3. Step 3: Cross multiply
   11,353.04x = 17,031.72 × 4,427.12
4. Step 4: Simplify right side
   11,353.04x = 75,401,468.25
5. Step 5: Solve for x
   x = 75,401,468.25/11,353.04
6. Step 6: Final answer
   x = 6,641.52