Finding the Fourth Proportional to 42,223.76, 63,339.28 and 11,059

Step by Step Solution

1. Step 1: Write the proportion equation
   42,223.76 : 63,339.28 = 11,059 : x
2. Step 2: Convert to fraction form
   42,223.76/63,339.28 = 11,059/x
3. Step 3: Cross multiply
   42,223.76x = 63,339.28 × 11,059
4. Step 4: Simplify right side
   42,223.76x = 700,469,097.52
5. Step 5: Solve for x
   x = 700,469,097.52/42,223.76
6. Step 6: Final answer
   x = 16,589.45