Finding the Fourth Proportional to 13,031.49, 17,992.35 and 8,322.15

Step by Step Solution

1. Step 1: Write the proportion equation
   13,031.49 : 17,992.35 = 8,322.15 : x
2. Step 2: Convert to fraction form
   13,031.49/17,992.35 = 8,322.15/x
3. Step 3: Cross multiply
   13,031.49x = 17,992.35 × 8,322.15
4. Step 4: Simplify right side
   13,031.49x = 149,735,035.55
5. Step 5: Solve for x
   x = 149,735,035.55/13,031.49
6. Step 6: Final answer
   x = 11,490.25