Finding the Fourth Proportional to 221,196.42, 331,794.54 and 54,984.42

Step by Step Solution

1. Step 1: Write the proportion equation
   221,196.42 : 331,794.54 = 54,984.42 : x
2. Step 2: Convert to fraction form
   221,196.42/331,794.54 = 54,984.42/x
3. Step 3: Cross multiply
   221,196.42x = 331,794.54 × 54,984.42
4. Step 4: Simplify right side
   221,196.42x = 18,243,530,341.07
5. Step 5: Solve for x
   x = 18,243,530,341.07/221,196.42
6. Step 6: Final answer
   x = 82,476.61