Finding the Fourth Proportional to 31,046.64, 42,844.56 and 16,899.48

Step by Step Solution

1. Step 1: Write the proportion equation
   31,046.64 : 42,844.56 = 16,899.48 : x
2. Step 2: Convert to fraction form
   31,046.64/42,844.56 = 16,899.48/x
3. Step 3: Cross multiply
   31,046.64x = 42,844.56 × 16,899.48
4. Step 4: Simplify right side
   31,046.64x = 724,050,784.83
5. Step 5: Solve for x
   x = 724,050,784.83/31,046.64
6. Step 6: Final answer
   x = 23,321.39