Finding the Fourth Proportional to 33,978.83, 50,975.31 and 10,287.70

Step by Step Solution

1. Step 1: Write the proportion equation
   33,978.83 : 50,975.31 = 10,287.70 : x
2. Step 2: Convert to fraction form
   33,978.83/50,975.31 = 10,287.70/x
3. Step 3: Cross multiply
   33,978.83x = 50,975.31 × 10,287.70
4. Step 4: Simplify right side
   33,978.83x = 524,418,696.69
5. Step 5: Solve for x
   x = 524,418,696.69/33,978.83
6. Step 6: Final answer
   x = 15,433.69