Finding the Fourth Proportional to 54,142.84, 81,055.89 and 31,584.55

Step by Step Solution

1. Step 1: Write the proportion equation
   54,142.84 : 81,055.89 = 31,584.55 : x
2. Step 2: Convert to fraction form
   54,142.84/81,055.89 = 31,584.55/x
3. Step 3: Cross multiply
   54,142.84x = 81,055.89 × 31,584.55
4. Step 4: Simplify right side
   54,142.84x = 2,560,113,810.50
5. Step 5: Solve for x
   x = 2,560,113,810.50/54,142.84
6. Step 6: Final answer
   x = 47,284.44