Finding the Fourth Proportional to 31,618.42, 47,413.56 and 16,824.22

Step by Step Solution

1. Step 1: Write the proportion equation
   31,618.42 : 47,413.56 = 16,824.22 : x
2. Step 2: Convert to fraction form
   31,618.42/47,413.56 = 16,824.22/x
3. Step 3: Cross multiply
   31,618.42x = 47,413.56 × 16,824.22
4. Step 4: Simplify right side
   31,618.42x = 797,696,164.42
5. Step 5: Solve for x
   x = 797,696,164.42/31,618.42
6. Step 6: Final answer
   x = 25,228.84