Finding the Fourth Proportional to 16,051.48, 22,151.34 and 8,978.68

Step by Step Solution

1. Step 1: Write the proportion equation
   16,051.48 : 22,151.34 = 8,978.68 : x
2. Step 2: Convert to fraction form
   16,051.48/22,151.34 = 8,978.68/x
3. Step 3: Cross multiply
   16,051.48x = 22,151.34 × 8,978.68
4. Step 4: Simplify right side
   16,051.48x = 198,889,793.43
5. Step 5: Solve for x
   x = 198,889,793.43/16,051.48
6. Step 6: Final answer
   x = 12,390.74