Finding the Fourth Proportional to 50,124.91, 69,155.35 and 28,599.20

Step by Step Solution

1. Step 1: Write the proportion equation
   50,124.91 : 69,155.35 = 28,599.20 : x
2. Step 2: Convert to fraction form
   50,124.91/69,155.35 = 28,599.20/x
3. Step 3: Cross multiply
   50,124.91x = 69,155.35 × 28,599.20
4. Step 4: Simplify right side
   50,124.91x = 1,977,787,685.72
5. Step 5: Solve for x
   x = 1,977,787,685.72/50,124.91
6. Step 6: Final answer
   x = 39,457.18