Finding the Fourth Proportional to 50,719.02, 69,991.86 and 28,363.02

Step by Step Solution

1. Step 1: Write the proportion equation
   50,719.02 : 69,991.86 = 28,363.02 : x
2. Step 2: Convert to fraction form
   50,719.02/69,991.86 = 28,363.02/x
3. Step 3: Cross multiply
   50,719.02x = 69,991.86 × 28,363.02
4. Step 4: Simplify right side
   50,719.02x = 1,985,180,525.02
5. Step 5: Solve for x
   x = 1,985,180,525.02/50,719.02
6. Step 6: Final answer
   x = 39,140.75