Finding the Fourth Proportional to 223,074.69, 308,448.59 and 219,469.25

Step by Step Solution

1. Step 1: Write the proportion equation
   223,074.69 : 308,448.59 = 219,469.25 : x
2. Step 2: Convert to fraction form
   223,074.69/308,448.59 = 219,469.25/x
3. Step 3: Cross multiply
   223,074.69x = 308,448.59 × 219,469.25
4. Step 4: Simplify right side
   223,074.69x = 67,694,978,071.27
5. Step 5: Solve for x
   x = 67,694,978,071.27/223,074.69
6. Step 6: Final answer
   x = 303,463.28