Finding the Fourth Proportional to 41,687.48, 62,537.72 and 13,979

Step by Step Solution

1. Step 1: Write the proportion equation
   41,687.48 : 62,537.72 = 13,979 : x
2. Step 2: Convert to fraction form
   41,687.48/62,537.72 = 13,979/x
3. Step 3: Cross multiply
   41,687.48x = 62,537.72 × 13,979
4. Step 4: Simplify right side
   41,687.48x = 874,214,787.88
5. Step 5: Solve for x
   x = 874,214,787.88/41,687.48
6. Step 6: Final answer
   x = 20,970.68