Finding the Fourth Proportional to 31,050.72, 42,850.38 and 16,903.56

Step by Step Solution

1. Step 1: Write the proportion equation
   31,050.72 : 42,850.38 = 16,903.56 : x
2. Step 2: Convert to fraction form
   31,050.72/42,850.38 = 16,903.56/x
3. Step 3: Cross multiply
   31,050.72x = 42,850.38 × 16,903.56
4. Step 4: Simplify right side
   31,050.72x = 724,323,969.35
5. Step 5: Solve for x
   x = 724,323,969.35/31,050.72
6. Step 6: Final answer
   x = 23,327.12