Finding the Fourth Proportional to 54,452.52, 81,683.82 and 21,175.09

Step by Step Solution

1. Step 1: Write the proportion equation
   54,452.52 : 81,683.82 = 21,175.09 : x
2. Step 2: Convert to fraction form
   54,452.52/81,683.82 = 21,175.09/x
3. Step 3: Cross multiply
   54,452.52x = 81,683.82 × 21,175.09
4. Step 4: Simplify right side
   54,452.52x = 1,729,662,035.83
5. Step 5: Solve for x
   x = 1,729,662,035.83/54,452.52
6. Step 6: Final answer
   x = 31,764.59