Finding the Fourth Proportional to 355,613.97, 490,419.74 and 233,061.71

Step by Step Solution

1. Step 1: Write the proportion equation
   355,613.97 : 490,419.74 = 233,061.71 : x
2. Step 2: Convert to fraction form
   355,613.97/490,419.74 = 233,061.71/x
3. Step 3: Cross multiply
   355,613.97x = 490,419.74 × 233,061.71
4. Step 4: Simplify right side
   355,613.97x = 114,298,063,222.16
5. Step 5: Solve for x
   x = 114,298,063,222.16/355,613.97
6. Step 6: Final answer
   x = 321,410.50