Finding the Fourth Proportional to 33,978.18, 50,969.01 and 10,285.11

Step by Step Solution

1. Step 1: Write the proportion equation
   33,978.18 : 50,969.01 = 10,285.11 : x
2. Step 2: Convert to fraction form
   33,978.18/50,969.01 = 10,285.11/x
3. Step 3: Cross multiply
   33,978.18x = 50,969.01 × 10,285.11
4. Step 4: Simplify right side
   33,978.18x = 524,221,874.44
5. Step 5: Solve for x
   x = 524,221,874.44/33,978.18
6. Step 6: Final answer
   x = 15,428.19