Finding the Fourth Proportional to 31,994.76, 48,002.94 and 20,157.42

Step by Step Solution

1. Step 1: Write the proportion equation
   31,994.76 : 48,002.94 = 20,157.42 : x
2. Step 2: Convert to fraction form
   31,994.76/48,002.94 = 20,157.42/x
3. Step 3: Cross multiply
   31,994.76x = 48,002.94 × 20,157.42
4. Step 4: Simplify right side
   31,994.76x = 967,615,422.81
5. Step 5: Solve for x
   x = 967,615,422.81/31,994.76
6. Step 6: Final answer
   x = 30,242.93