Finding the Fourth Proportional to 14,654.73, 21,981.78 and 3,561.48

Step by Step Solution

1. Step 1: Write the proportion equation
   14,654.73 : 21,981.78 = 3,561.48 : x
2. Step 2: Convert to fraction form
   14,654.73/21,981.78 = 3,561.48/x
3. Step 3: Cross multiply
   14,654.73x = 21,981.78 × 3,561.48
4. Step 4: Simplify right side
   14,654.73x = 78,287,669.83
5. Step 5: Solve for x
   x = 78,287,669.83/14,654.73
6. Step 6: Final answer
   x = 5,342.14