Finding the Fourth Proportional to 266,648.72, 367,971.30 and 159,198.56

Step by Step Solution

1. Step 1: Write the proportion equation
   266,648.72 : 367,971.30 = 159,198.56 : x
2. Step 2: Convert to fraction form
   266,648.72/367,971.30 = 159,198.56/x
3. Step 3: Cross multiply
   266,648.72x = 367,971.30 × 159,198.56
4. Step 4: Simplify right side
   266,648.72x = 58,580,501,081.33
5. Step 5: Solve for x
   x = 58,580,501,081.33/266,648.72
6. Step 6: Final answer
   x = 219,691.66