Finding the Fourth Proportional to 53,816.38, 80,737.52 and 16,880.38

Step by Step Solution

1. Step 1: Write the proportion equation
   53,816.38 : 80,737.52 = 16,880.38 : x
2. Step 2: Convert to fraction form
   53,816.38/80,737.52 = 16,880.38/x
3. Step 3: Cross multiply
   53,816.38x = 80,737.52 × 16,880.38
4. Step 4: Simplify right side
   53,816.38x = 1,362,880,017.86
5. Step 5: Solve for x
   x = 1,362,880,017.86/53,816.38
6. Step 6: Final answer
   x = 25,324.63