Finding the Fourth Proportional to 51,049.50, 70,448.34 and 28,693.50

Step by Step Solution

1. Step 1: Write the proportion equation
   51,049.50 : 70,448.34 = 28,693.50 : x
2. Step 2: Convert to fraction form
   51,049.50/70,448.34 = 28,693.50/x
3. Step 3: Cross multiply
   51,049.50x = 70,448.34 × 28,693.50
4. Step 4: Simplify right side
   51,049.50x = 2,021,409,443.79
5. Step 5: Solve for x
   x = 2,021,409,443.79/51,049.50
6. Step 6: Final answer
   x = 39,597.05