Finding the Fourth Proportional to 31,064.16, 42,867.24 and 16,916.96

Step by Step Solution

1. Step 1: Write the proportion equation
   31,064.16 : 42,867.24 = 16,916.96 : x
2. Step 2: Convert to fraction form
   31,064.16/42,867.24 = 16,916.96/x
3. Step 3: Cross multiply
   31,064.16x = 42,867.24 × 16,916.96
4. Step 4: Simplify right side
   31,064.16x = 725,183,384.39
5. Step 5: Solve for x
   x = 725,183,384.39/31,064.16
6. Step 6: Final answer
   x = 23,344.70