Finding the Fourth Proportional to 31,605.86, 47,394.52 and 16,811.62

Step by Step Solution

1. Step 1: Write the proportion equation
   31,605.86 : 47,394.52 = 16,811.62 : x
2. Step 2: Convert to fraction form
   31,605.86/47,394.52 = 16,811.62/x
3. Step 3: Cross multiply
   31,605.86x = 47,394.52 × 16,811.62
4. Step 4: Simplify right side
   31,605.86x = 796,778,499.81
5. Step 5: Solve for x
   x = 796,778,499.81/31,605.86
6. Step 6: Final answer
   x = 25,209.83