Finding the Fourth Proportional to 53,729.47, 80,199.85 and 49,771

Step by Step Solution

1. Step 1: Write the proportion equation
   53,729.47 : 80,199.85 = 49,771 : x
2. Step 2: Convert to fraction form
   53,729.47/80,199.85 = 49,771/x
3. Step 3: Cross multiply
   53,729.47x = 80,199.85 × 49,771
4. Step 4: Simplify right side
   53,729.47x = 3,991,626,734.35
5. Step 5: Solve for x
   x = 3,991,626,734.35/53,729.47
6. Step 6: Final answer
   x = 74,291.20