Finding the Fourth Proportional to 50,142.22, 69,181.43 and 28,631.25

Step by Step Solution

1. Step 1: Write the proportion equation
   50,142.22 : 69,181.43 = 28,631.25 : x
2. Step 2: Convert to fraction form
   50,142.22/69,181.43 = 28,631.25/x
3. Step 3: Cross multiply
   50,142.22x = 69,181.43 × 28,631.25
4. Step 4: Simplify right side
   50,142.22x = 1,980,750,674.53
5. Step 5: Solve for x
   x = 1,980,750,674.53/50,142.22
6. Step 6: Final answer
   x = 39,502.65