Finding the Fourth Proportional to 53,804.50, 80,719.71 and 16,868.50

Step by Step Solution

1. Step 1: Write the proportion equation
   53,804.50 : 80,719.71 = 16,868.50 : x
2. Step 2: Convert to fraction form
   53,804.50/80,719.71 = 16,868.50/x
3. Step 3: Cross multiply
   53,804.50x = 80,719.71 × 16,868.50
4. Step 4: Simplify right side
   53,804.50x = 1,361,620,428.14
5. Step 5: Solve for x
   x = 1,361,620,428.14/53,804.50
6. Step 6: Final answer
   x = 25,306.81