Finding the Fourth Proportional to 35,894.54, 49,533.72 and 19,978.04

Step by Step Solution

1. Step 1: Write the proportion equation
   35,894.54 : 49,533.72 = 19,978.04 : x
2. Step 2: Convert to fraction form
   35,894.54/49,533.72 = 19,978.04/x
3. Step 3: Cross multiply
   35,894.54x = 49,533.72 × 19,978.04
4. Step 4: Simplify right side
   35,894.54x = 989,586,639.51
5. Step 5: Solve for x
   x = 989,586,639.51/35,894.54
6. Step 6: Final answer
   x = 27,569.28