Finding the Fourth Proportional to 14,644.50, 21,948.47 and 7,141.87

Step by Step Solution

1. Step 1: Write the proportion equation
   14,644.50 : 21,948.47 = 7,141.87 : x
2. Step 2: Convert to fraction form
   14,644.50/21,948.47 = 7,141.87/x
3. Step 3: Cross multiply
   14,644.50x = 21,948.47 × 7,141.87
4. Step 4: Simplify right side
   14,644.50x = 156,753,137.95
5. Step 5: Solve for x
   x = 156,753,137.95/14,644.50
6. Step 6: Final answer
   x = 10,703.89