Finding the Fourth Proportional to 14,509.37, 21,763.30 and 3,978.62

Step by Step Solution

1. Step 1: Write the proportion equation
   14,509.37 : 21,763.30 = 3,978.62 : x
2. Step 2: Convert to fraction form
   14,509.37/21,763.30 = 3,978.62/x
3. Step 3: Cross multiply
   14,509.37x = 21,763.30 × 3,978.62
4. Step 4: Simplify right side
   14,509.37x = 86,587,900.65
5. Step 5: Solve for x
   x = 86,587,900.65/14,509.37
6. Step 6: Final answer
   x = 5,967.72