Finding the Fourth Proportional to 31,099.69, 42,917.70 and 16,952.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,099.69 : 42,917.70 = 16,952.50 : x
2. Step 2: Convert to fraction form
   31,099.69/42,917.70 = 16,952.50/x
3. Step 3: Cross multiply
   31,099.69x = 42,917.70 × 16,952.50
4. Step 4: Simplify right side
   31,099.69x = 727,562,309.25
5. Step 5: Solve for x
   x = 727,562,309.25/31,099.69
6. Step 6: Final answer
   x = 23,394.52