Finding the Fourth Proportional to 14,536.54, 21,818.42 and 7,146.30

Step by Step Solution

1. Step 1: Write the proportion equation
   14,536.54 : 21,818.42 = 7,146.30 : x
2. Step 2: Convert to fraction form
   14,536.54/21,818.42 = 7,146.30/x
3. Step 3: Cross multiply
   14,536.54x = 21,818.42 × 7,146.30
4. Step 4: Simplify right side
   14,536.54x = 155,920,974.85
5. Step 5: Solve for x
   x = 155,920,974.85/14,536.54
6. Step 6: Final answer
   x = 10,726.14