Finding the Fourth Proportional to 31,544.50, 43,532.04 and 20,385.94

Step by Step Solution

1. Step 1: Write the proportion equation
   31,544.50 : 43,532.04 = 20,385.94 : x
2. Step 2: Convert to fraction form
   31,544.50/43,532.04 = 20,385.94/x
3. Step 3: Cross multiply
   31,544.50x = 43,532.04 × 20,385.94
4. Step 4: Simplify right side
   31,544.50x = 887,441,555.52
5. Step 5: Solve for x
   x = 887,441,555.52/31,544.50
6. Step 6: Final answer
   x = 28,133.00