Finding the Fourth Proportional to 14,545.42, 21,822.83 and 7,144.69

Step by Step Solution

1. Step 1: Write the proportion equation
   14,545.42 : 21,822.83 = 7,144.69 : x
2. Step 2: Convert to fraction form
   14,545.42/21,822.83 = 7,144.69/x
3. Step 3: Cross multiply
   14,545.42x = 21,822.83 × 7,144.69
4. Step 4: Simplify right side
   14,545.42x = 155,917,372.89
5. Step 5: Solve for x
   x = 155,917,372.89/14,545.42
6. Step 6: Final answer
   x = 10,719.34