Finding the Fourth Proportional to 22,049.99, 30,429.31 and 11,978.62

Step by Step Solution

1. Step 1: Write the proportion equation
   22,049.99 : 30,429.31 = 11,978.62 : x
2. Step 2: Convert to fraction form
   22,049.99/30,429.31 = 11,978.62/x
3. Step 3: Cross multiply
   22,049.99x = 30,429.31 × 11,978.62
4. Step 4: Simplify right side
   22,049.99x = 364,501,141.35
5. Step 5: Solve for x
   x = 364,501,141.35/22,049.99
6. Step 6: Final answer
   x = 16,530.67