Finding the Fourth Proportional to 33,978.60, 46,890.78 and 19,828.71

Step by Step Solution

1. Step 1: Write the proportion equation
   33,978.60 : 46,890.78 = 19,828.71 : x
2. Step 2: Convert to fraction form
   33,978.60/46,890.78 = 19,828.71/x
3. Step 3: Cross multiply
   33,978.60x = 46,890.78 × 19,828.71
4. Step 4: Simplify right side
   33,978.60x = 929,783,678.29
5. Step 5: Solve for x
   x = 929,783,678.29/33,978.60
6. Step 6: Final answer
   x = 27,363.80