Finding the Fourth Proportional to 54,788.52, 81,786.43 and 48,145.52

Step by Step Solution

1. Step 1: Write the proportion equation
   54,788.52 : 81,786.43 = 48,145.52 : x
2. Step 2: Convert to fraction form
   54,788.52/81,786.43 = 48,145.52/x
3. Step 3: Cross multiply
   54,788.52x = 81,786.43 × 48,145.52
4. Step 4: Simplify right side
   54,788.52x = 3,937,650,201.29
5. Step 5: Solve for x
   x = 3,937,650,201.29/54,788.52
6. Step 6: Final answer
   x = 71,869.99