Finding the Fourth Proportional to 12,442.17, 17,146.56 and 8,899.23

Step by Step Solution

1. Step 1: Write the proportion equation
   12,442.17 : 17,146.56 = 8,899.23 : x
2. Step 2: Convert to fraction form
   12,442.17/17,146.56 = 8,899.23/x
3. Step 3: Cross multiply
   12,442.17x = 17,146.56 × 8,899.23
4. Step 4: Simplify right side
   12,442.17x = 152,591,181.15
5. Step 5: Solve for x
   x = 152,591,181.15/12,442.17
6. Step 6: Final answer
   x = 12,264.03