Finding the Fourth Proportional to 31,047.02, 42,843.39 and 16,899.02

Step by Step Solution

1. Step 1: Write the proportion equation
   31,047.02 : 42,843.39 = 16,899.02 : x
2. Step 2: Convert to fraction form
   31,047.02/42,843.39 = 16,899.02/x
3. Step 3: Cross multiply
   31,047.02x = 42,843.39 × 16,899.02
4. Step 4: Simplify right side
   31,047.02x = 724,011,304.48
5. Step 5: Solve for x
   x = 724,011,304.48/31,047.02
6. Step 6: Final answer
   x = 23,319.83