Finding the Fourth Proportional to 51,377.33, 77,067.57 and 13,937.25

Step by Step Solution

1. Step 1: Write the proportion equation
   51,377.33 : 77,067.57 = 13,937.25 : x
2. Step 2: Convert to fraction form
   51,377.33/77,067.57 = 13,937.25/x
3. Step 3: Cross multiply
   51,377.33x = 77,067.57 × 13,937.25
4. Step 4: Simplify right side
   51,377.33x = 1,074,109,989.98
5. Step 5: Solve for x
   x = 1,074,109,989.98/51,377.33
6. Step 6: Final answer
   x = 20,906.30