Finding the Fourth Proportional to 14,369.27, 21,551.40 and 3,978.59

Step by Step Solution

1. Step 1: Write the proportion equation
   14,369.27 : 21,551.40 = 3,978.59 : x
2. Step 2: Convert to fraction form
   14,369.27/21,551.40 = 3,978.59/x
3. Step 3: Cross multiply
   14,369.27x = 21,551.40 × 3,978.59
4. Step 4: Simplify right side
   14,369.27x = 85,744,076.77
5. Step 5: Solve for x
   x = 85,744,076.77/14,369.27
6. Step 6: Final answer
   x = 5,967.19