Finding the Fourth Proportional to 31,039.72, 42,834.82 and 16,892.53

Step by Step Solution

1. Step 1: Write the proportion equation
   31,039.72 : 42,834.82 = 16,892.53 : x
2. Step 2: Convert to fraction form
   31,039.72/42,834.82 = 16,892.53/x
3. Step 3: Cross multiply
   31,039.72x = 42,834.82 × 16,892.53
4. Step 4: Simplify right side
   31,039.72x = 723,588,481.89
5. Step 5: Solve for x
   x = 723,588,481.89/31,039.72
6. Step 6: Final answer
   x = 23,311.69