Finding the Fourth Proportional to 14,647.79, 21,971.61 and 3,554.43

Step by Step Solution

1. Step 1: Write the proportion equation
   14,647.79 : 21,971.61 = 3,554.43 : x
2. Step 2: Convert to fraction form
   14,647.79/21,971.61 = 3,554.43/x
3. Step 3: Cross multiply
   14,647.79x = 21,971.61 × 3,554.43
4. Step 4: Simplify right side
   14,647.79x = 78,096,549.73
5. Step 5: Solve for x
   x = 78,096,549.73/14,647.79
6. Step 6: Final answer
   x = 5,331.63