Finding the Fourth Proportional to 51,401.34, 70,932.42 and 28,740.38

Step by Step Solution

1. Step 1: Write the proportion equation
   51,401.34 : 70,932.42 = 28,740.38 : x
2. Step 2: Convert to fraction form
   51,401.34/70,932.42 = 28,740.38/x
3. Step 3: Cross multiply
   51,401.34x = 70,932.42 × 28,740.38
4. Step 4: Simplify right side
   51,401.34x = 2,038,624,350.46
5. Step 5: Solve for x
   x = 2,038,624,350.46/51,401.34
6. Step 6: Final answer
   x = 39,660.92