Finding the Fourth Proportional to 50,123.91, 69,153.97 and 28,598.20

Step by Step Solution

1. Step 1: Write the proportion equation
   50,123.91 : 69,153.97 = 28,598.20 : x
2. Step 2: Convert to fraction form
   50,123.91/69,153.97 = 28,598.20/x
3. Step 3: Cross multiply
   50,123.91x = 69,153.97 × 28,598.20
4. Step 4: Simplify right side
   50,123.91x = 1,977,678,874.10
5. Step 5: Solve for x
   x = 1,977,678,874.10/50,123.91
6. Step 6: Final answer
   x = 39,455.80