Finding the Fourth Proportional to 51,173.37, 70,624.43 and 28,516.05

Step by Step Solution

1. Step 1: Write the proportion equation
   51,173.37 : 70,624.43 = 28,516.05 : x
2. Step 2: Convert to fraction form
   51,173.37/70,624.43 = 28,516.05/x
3. Step 3: Cross multiply
   51,173.37x = 70,624.43 × 28,516.05
4. Step 4: Simplify right side
   51,173.37x = 2,013,929,634.52
5. Step 5: Solve for x
   x = 2,013,929,634.52/51,173.37
6. Step 6: Final answer
   x = 39,355.03