Finding the Fourth Proportional to 355,109.31, 490,047.62 and 193,964.33

Step by Step Solution

1. Step 1: Write the proportion equation
   355,109.31 : 490,047.62 = 193,964.33 : x
2. Step 2: Convert to fraction form
   355,109.31/490,047.62 = 193,964.33/x
3. Step 3: Cross multiply
   355,109.31x = 490,047.62 × 193,964.33
4. Step 4: Simplify right side
   355,109.31x = 95,051,758,536.69
5. Step 5: Solve for x
   x = 95,051,758,536.69/355,109.31
6. Step 6: Final answer
   x = 267,669.01