Finding the Fourth Proportional to 31,034.83, 42,828 and 16,887.68

Step by Step Solution

1. Step 1: Write the proportion equation
   31,034.83 : 42,828 = 16,887.68 : x
2. Step 2: Convert to fraction form
   31,034.83/42,828 = 16,887.68/x
3. Step 3: Cross multiply
   31,034.83x = 42,828 × 16,887.68
4. Step 4: Simplify right side
   31,034.83x = 723,265,559.04
5. Step 5: Solve for x
   x = 723,265,559.04/31,034.83
6. Step 6: Final answer
   x = 23,304.96