Finding the Fourth Proportional to 31,047.50, 42,844.29 and 16,900.35

Step by Step Solution

1. Step 1: Write the proportion equation
   31,047.50 : 42,844.29 = 16,900.35 : x
2. Step 2: Convert to fraction form
   31,047.50/42,844.29 = 16,900.35/x
3. Step 3: Cross multiply
   31,047.50x = 42,844.29 × 16,900.35
4. Step 4: Simplify right side
   31,047.50x = 724,083,496.50
5. Step 5: Solve for x
   x = 724,083,496.50/31,047.50
6. Step 6: Final answer
   x = 23,321.80