Finding the Fourth Proportional to 51,274.31, 70,758.56 and 28,304.15

Step by Step Solution

1. Step 1: Write the proportion equation
   51,274.31 : 70,758.56 = 28,304.15 : x
2. Step 2: Convert to fraction form
   51,274.31/70,758.56 = 28,304.15/x
3. Step 3: Cross multiply
   51,274.31x = 70,758.56 × 28,304.15
4. Step 4: Simplify right side
   51,274.31x = 2,002,760,400.71
5. Step 5: Solve for x
   x = 2,002,760,400.71/51,274.31
6. Step 6: Final answer
   x = 39,059.73