Finding the Fourth Proportional to 53,382.71, 80,072.49 and 13,939.83

Step by Step Solution

1. Step 1: Write the proportion equation
   53,382.71 : 80,072.49 = 13,939.83 : x
2. Step 2: Convert to fraction form
   53,382.71/80,072.49 = 13,939.83/x
3. Step 3: Cross multiply
   53,382.71x = 80,072.49 × 13,939.83
4. Step 4: Simplify right side
   53,382.71x = 1,116,196,898.28
5. Step 5: Solve for x
   x = 1,116,196,898.28/53,382.71
6. Step 6: Final answer
   x = 20,909.34