Finding the Fourth Proportional to 57,941.31, 79,781.31 and 50,729.98

Step by Step Solution

1. Step 1: Write the proportion equation
   57,941.31 : 79,781.31 = 50,729.98 : x
2. Step 2: Convert to fraction form
   57,941.31/79,781.31 = 50,729.98/x
3. Step 3: Cross multiply
   57,941.31x = 79,781.31 × 50,729.98
4. Step 4: Simplify right side
   57,941.31x = 4,047,304,260.67
5. Step 5: Solve for x
   x = 4,047,304,260.67/57,941.31
6. Step 6: Final answer
   x = 69,851.79