Finding the Fourth Proportional to 31,044.65, 42,841.80 and 16,897.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,044.65 : 42,841.80 = 16,897.50 : x
2. Step 2: Convert to fraction form
   31,044.65/42,841.80 = 16,897.50/x
3. Step 3: Cross multiply
   31,044.65x = 42,841.80 × 16,897.50
4. Step 4: Simplify right side
   31,044.65x = 723,919,315.50
5. Step 5: Solve for x
   x = 723,919,315.50/31,044.65
6. Step 6: Final answer
   x = 23,318.65