Finding the Fourth Proportional to 50,090.69, 69,132.74 and 28,580.33

Step by Step Solution

1. Step 1: Write the proportion equation
   50,090.69 : 69,132.74 = 28,580.33 : x
2. Step 2: Convert to fraction form
   50,090.69/69,132.74 = 28,580.33/x
3. Step 3: Cross multiply
   50,090.69x = 69,132.74 × 28,580.33
4. Step 4: Simplify right side
   50,090.69x = 1,975,836,034.44
5. Step 5: Solve for x
   x = 1,975,836,034.44/50,090.69
6. Step 6: Final answer
   x = 39,445.18