Finding the Fourth Proportional to 34,288.74, 47,333.97 and 20,142.72

Step by Step Solution

1. Step 1: Write the proportion equation
   34,288.74 : 47,333.97 = 20,142.72 : x
2. Step 2: Convert to fraction form
   34,288.74/47,333.97 = 20,142.72/x
3. Step 3: Cross multiply
   34,288.74x = 47,333.97 × 20,142.72
4. Step 4: Simplify right side
   34,288.74x = 953,434,904.20
5. Step 5: Solve for x
   x = 953,434,904.20/34,288.74
6. Step 6: Final answer
   x = 27,806.06