Finding the Fourth Proportional to 33,978.06, 50,963.12 and 9,020.05

Step by Step Solution

1. Step 1: Write the proportion equation
   33,978.06 : 50,963.12 = 9,020.05 : x
2. Step 2: Convert to fraction form
   33,978.06/50,963.12 = 9,020.05/x
3. Step 3: Cross multiply
   33,978.06x = 50,963.12 × 9,020.05
4. Step 4: Simplify right side
   33,978.06x = 459,689,635.74
5. Step 5: Solve for x
   x = 459,689,635.74/33,978.06
6. Step 6: Final answer
   x = 13,529.02