Finding the Fourth Proportional to 41,820, 62,739.72 and 14,118

Step by Step Solution

1. Step 1: Write the proportion equation
   41,820 : 62,739.72 = 14,118 : x
2. Step 2: Convert to fraction form
   41,820/62,739.72 = 14,118/x
3. Step 3: Cross multiply
   41,820x = 62,739.72 × 14,118
4. Step 4: Simplify right side
   41,820x = 885,759,366.96
5. Step 5: Solve for x
   x = 885,759,366.96/41,820
6. Step 6: Final answer
   x = 21,180.28