Finding the Fourth Proportional to 11,396.37, 17,100.47 and 8,622.22

Step by Step Solution

1. Step 1: Write the proportion equation
   11,396.37 : 17,100.47 = 8,622.22 : x
2. Step 2: Convert to fraction form
   11,396.37/17,100.47 = 8,622.22/x
3. Step 3: Cross multiply
   11,396.37x = 17,100.47 × 8,622.22
4. Step 4: Simplify right side
   11,396.37x = 147,443,993.25
5. Step 5: Solve for x
   x = 147,443,993.25/11,396.37
6. Step 6: Final answer
   x = 12,937.81