Finding the Fourth Proportional to 50,091.16, 69,041.82 and 39,987.22

Step by Step Solution

1. Step 1: Write the proportion equation
   50,091.16 : 69,041.82 = 39,987.22 : x
2. Step 2: Convert to fraction form
   50,091.16/69,041.82 = 39,987.22/x
3. Step 3: Cross multiply
   50,091.16x = 69,041.82 × 39,987.22
4. Step 4: Simplify right side
   50,091.16x = 2,760,790,445.54
5. Step 5: Solve for x
   x = 2,760,790,445.54/50,091.16
6. Step 6: Final answer
   x = 55,115.32