Finding the Fourth Proportional to 50,891.34, 76,314.72 and 20,884.98

Step by Step Solution

1. Step 1: Write the proportion equation
   50,891.34 : 76,314.72 = 20,884.98 : x
2. Step 2: Convert to fraction form
   50,891.34/76,314.72 = 20,884.98/x
3. Step 3: Cross multiply
   50,891.34x = 76,314.72 × 20,884.98
4. Step 4: Simplify right side
   50,891.34x = 1,593,831,400.91
5. Step 5: Solve for x
   x = 1,593,831,400.91/50,891.34
6. Step 6: Final answer
   x = 31,318.32