Finding the Fourth Proportional to 54,578.56, 81,870.72 and 17,645.44

Step by Step Solution

1. Step 1: Write the proportion equation
   54,578.56 : 81,870.72 = 17,645.44 : x
2. Step 2: Convert to fraction form
   54,578.56/81,870.72 = 17,645.44/x
3. Step 3: Cross multiply
   54,578.56x = 81,870.72 × 17,645.44
4. Step 4: Simplify right side
   54,578.56x = 1,444,644,877.52
5. Step 5: Solve for x
   x = 1,444,644,877.52/54,578.56
6. Step 6: Final answer
   x = 26,469.09