Finding the Fourth Proportional to 14,978.20, 22,424.10 and 14,978.20

Step by Step Solution

1. Step 1: Write the proportion equation
   14,978.20 : 22,424.10 = 14,978.20 : x
2. Step 2: Convert to fraction form
   14,978.20/22,424.10 = 14,978.20/x
3. Step 3: Cross multiply
   14,978.20x = 22,424.10 × 14,978.20
4. Step 4: Simplify right side
   14,978.20x = 335,872,654.62
5. Step 5: Solve for x
   x = 335,872,654.62/14,978.20
6. Step 6: Final answer
   x = 22,424.10