Finding the Fourth Proportional to 31,064.12, 42,867 and 16,916.88

Step by Step Solution

1. Step 1: Write the proportion equation
   31,064.12 : 42,867 = 16,916.88 : x
2. Step 2: Convert to fraction form
   31,064.12/42,867 = 16,916.88/x
3. Step 3: Cross multiply
   31,064.12x = 42,867 × 16,916.88
4. Step 4: Simplify right side
   31,064.12x = 725,175,894.96
5. Step 5: Solve for x
   x = 725,175,894.96/31,064.12
6. Step 6: Final answer
   x = 23,344.49