Finding the Fourth Proportional to 35,894.38, 49,533.73 and 19,978.83

Step by Step Solution

1. Step 1: Write the proportion equation
   35,894.38 : 49,533.73 = 19,978.83 : x
2. Step 2: Convert to fraction form
   35,894.38/49,533.73 = 19,978.83/x
3. Step 3: Cross multiply
   35,894.38x = 49,533.73 × 19,978.83
4. Step 4: Simplify right side
   35,894.38x = 989,625,970.94
5. Step 5: Solve for x
   x = 989,625,970.94/35,894.38
6. Step 6: Final answer
   x = 27,570.50