Finding the Fourth Proportional to 31,041.12, 42,835.47 and 16,894.02

Step by Step Solution

1. Step 1: Write the proportion equation
   31,041.12 : 42,835.47 = 16,894.02 : x
2. Step 2: Convert to fraction form
   31,041.12/42,835.47 = 16,894.02/x
3. Step 3: Cross multiply
   31,041.12x = 42,835.47 × 16,894.02
4. Step 4: Simplify right side
   31,041.12x = 723,663,286.89
5. Step 5: Solve for x
   x = 723,663,286.89/31,041.12
6. Step 6: Final answer
   x = 23,313.05