Finding the Fourth Proportional to 51,454.91, 71,011.59 and 28,796.17

Step by Step Solution

1. Step 1: Write the proportion equation
   51,454.91 : 71,011.59 = 28,796.17 : x
2. Step 2: Convert to fraction form
   51,454.91/71,011.59 = 28,796.17/x
3. Step 3: Cross multiply
   51,454.91x = 71,011.59 × 28,796.17
4. Step 4: Simplify right side
   51,454.91x = 2,044,861,817.61
5. Step 5: Solve for x
   x = 2,044,861,817.61/51,454.91
6. Step 6: Final answer
   x = 39,740.85