Finding the Fourth Proportional to 53,383.71, 80,073.99 and 13,940.83

Step by Step Solution

1. Step 1: Write the proportion equation
   53,383.71 : 80,073.99 = 13,940.83 : x
2. Step 2: Convert to fraction form
   53,383.71/80,073.99 = 13,940.83/x
3. Step 3: Cross multiply
   53,383.71x = 80,073.99 × 13,940.83
4. Step 4: Simplify right side
   53,383.71x = 1,116,297,882.01
5. Step 5: Solve for x
   x = 1,116,297,882.01/53,383.71
6. Step 6: Final answer
   x = 20,910.83