Finding the Fourth Proportional to 31,064.04, 42,868.87 and 16,916.87

Step by Step Solution

1. Step 1: Write the proportion equation
   31,064.04 : 42,868.87 = 16,916.87 : x
2. Step 2: Convert to fraction form
   31,064.04/42,868.87 = 16,916.87/x
3. Step 3: Cross multiply
   31,064.04x = 42,868.87 × 16,916.87
4. Step 4: Simplify right side
   31,064.04x = 725,207,016.25
5. Step 5: Solve for x
   x = 725,207,016.25/31,064.04
6. Step 6: Final answer
   x = 23,345.55