Finding the Fourth Proportional to 218,105.36, 327,181.50 and 91,758.48

Step by Step Solution

1. Step 1: Write the proportion equation
   218,105.36 : 327,181.50 = 91,758.48 : x
2. Step 2: Convert to fraction form
   218,105.36/327,181.50 = 91,758.48/x
3. Step 3: Cross multiply
   218,105.36x = 327,181.50 × 91,758.48
4. Step 4: Simplify right side
   218,105.36x = 30,021,677,124.12
5. Step 5: Solve for x
   x = 30,021,677,124.12/218,105.36
6. Step 6: Final answer
   x = 137,647.59