Finding the Fourth Proportional to 31,045.50, 42,842.79 and 16,898.58

Step by Step Solution

1. Step 1: Write the proportion equation
   31,045.50 : 42,842.79 = 16,898.58 : x
2. Step 2: Convert to fraction form
   31,045.50/42,842.79 = 16,898.58/x
3. Step 3: Cross multiply
   31,045.50x = 42,842.79 × 16,898.58
4. Step 4: Simplify right side
   31,045.50x = 723,982,314.24
5. Step 5: Solve for x
   x = 723,982,314.24/31,045.50
6. Step 6: Final answer
   x = 23,320.04