Finding the Fourth Proportional to 54,049.83, 74,584.50 and 31,385.12

Step by Step Solution

1. Step 1: Write the proportion equation
   54,049.83 : 74,584.50 = 31,385.12 : x
2. Step 2: Convert to fraction form
   54,049.83/74,584.50 = 31,385.12/x
3. Step 3: Cross multiply
   54,049.83x = 74,584.50 × 31,385.12
4. Step 4: Simplify right side
   54,049.83x = 2,340,843,411.56
5. Step 5: Solve for x
   x = 2,340,843,411.56/54,049.83
6. Step 6: Final answer
   x = 43,308.99