Finding the Fourth Proportional to 41,908, 62,869.72 and 13,830

Step by Step Solution

1. Step 1: Write the proportion equation
   41,908 : 62,869.72 = 13,830 : x
2. Step 2: Convert to fraction form
   41,908/62,869.72 = 13,830/x
3. Step 3: Cross multiply
   41,908x = 62,869.72 × 13,830
4. Step 4: Simplify right side
   41,908x = 869,488,227.60
5. Step 5: Solve for x
   x = 869,488,227.60/41,908
6. Step 6: Final answer
   x = 20,747.55