Finding the Fourth Proportional to 31,369.76, 43,289.73 and 17,222.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,369.76 : 43,289.73 = 17,222.50 : x
2. Step 2: Convert to fraction form
   31,369.76/43,289.73 = 17,222.50/x
3. Step 3: Cross multiply
   31,369.76x = 43,289.73 × 17,222.50
4. Step 4: Simplify right side
   31,369.76x = 745,557,374.93
5. Step 5: Solve for x
   x = 745,557,374.93/31,369.76
6. Step 6: Final answer
   x = 23,766.75