Finding the Fourth Proportional to 54,335.53, 81,107.52 and 50,328.78

Step by Step Solution

1. Step 1: Write the proportion equation
   54,335.53 : 81,107.52 = 50,328.78 : x
2. Step 2: Convert to fraction form
   54,335.53/81,107.52 = 50,328.78/x
3. Step 3: Cross multiply
   54,335.53x = 81,107.52 × 50,328.78
4. Step 4: Simplify right side
   54,335.53x = 4,082,042,733.59
5. Step 5: Solve for x
   x = 4,082,042,733.59/54,335.53
6. Step 6: Final answer
   x = 75,126.58