Finding the Fourth Proportional to 217,667.33, 326,627.05 and 91,296.33

Step by Step Solution

1. Step 1: Write the proportion equation
   217,667.33 : 326,627.05 = 91,296.33 : x
2. Step 2: Convert to fraction form
   217,667.33/326,627.05 = 91,296.33/x
3. Step 3: Cross multiply
   217,667.33x = 326,627.05 × 91,296.33
4. Step 4: Simplify right side
   217,667.33x = 29,819,850,943.73
5. Step 5: Solve for x
   x = 29,819,850,943.73/217,667.33
6. Step 6: Final answer
   x = 136,997.37