Finding the Fourth Proportional to 31,035.33, 42,828.69 and 16,888.19

Step by Step Solution

1. Step 1: Write the proportion equation
   31,035.33 : 42,828.69 = 16,888.19 : x
2. Step 2: Convert to fraction form
   31,035.33/42,828.69 = 16,888.19/x
3. Step 3: Cross multiply
   31,035.33x = 42,828.69 × 16,888.19
4. Step 4: Simplify right side
   31,035.33x = 723,298,840.03
5. Step 5: Solve for x
   x = 723,298,840.03/31,035.33
6. Step 6: Final answer
   x = 23,305.66