Finding the Fourth Proportional to 363,448,294.65, 501,551,834.42 and 222,309,147.18

Step by Step Solution

1. Step 1: Write the proportion equation
   363,448,294.65 : 501,551,834.42 = 222,309,147.18 : x
2. Step 2: Convert to fraction form
   363,448,294.65/501,551,834.42 = 222,309,147.18/x
3. Step 3: Cross multiply
   363,448,294.65x = 501,551,834.42 × 222,309,147.18
4. Step 4: Simplify right side
   363,448,294.65x = 111,499,560,577,094,928
5. Step 5: Solve for x
   x = 111,499,560,577,094,928/363,448,294.65
6. Step 6: Final answer
   x = 306,782,456.32