Finding the Fourth Proportional to 50,168.39, 69,175.10 and 40,089.92

Step by Step Solution

1. Step 1: Write the proportion equation
   50,168.39 : 69,175.10 = 40,089.92 : x
2. Step 2: Convert to fraction form
   50,168.39/69,175.10 = 40,089.92/x
3. Step 3: Cross multiply
   50,168.39x = 69,175.10 × 40,089.92
4. Step 4: Simplify right side
   50,168.39x = 2,773,223,979.34
5. Step 5: Solve for x
   x = 2,773,223,979.34/50,168.39
6. Step 6: Final answer
   x = 55,278.32