Finding the Fourth Proportional to 14,086.78, 19,442.64 and 9,622.87

Step by Step Solution

1. Step 1: Write the proportion equation
   14,086.78 : 19,442.64 = 9,622.87 : x
2. Step 2: Convert to fraction form
   14,086.78/19,442.64 = 9,622.87/x
3. Step 3: Cross multiply
   14,086.78x = 19,442.64 × 9,622.87
4. Step 4: Simplify right side
   14,086.78x = 187,093,997.18
5. Step 5: Solve for x
   x = 187,093,997.18/14,086.78
6. Step 6: Final answer
   x = 13,281.53