Finding the Fourth Proportional to 31,333.42, 47,017.14 and 20,777.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,333.42 : 47,017.14 = 20,777.50 : x
2. Step 2: Convert to fraction form
   31,333.42/47,017.14 = 20,777.50/x
3. Step 3: Cross multiply
   31,333.42x = 47,017.14 × 20,777.50
4. Step 4: Simplify right side
   31,333.42x = 976,898,626.35
5. Step 5: Solve for x
   x = 976,898,626.35/31,333.42
6. Step 6: Final answer
   x = 31,177.53