Finding the Fourth Proportional to 212,882.72, 319,231.34 and 61,046.30

Step by Step Solution

1. Step 1: Write the proportion equation
   212,882.72 : 319,231.34 = 61,046.30 : x
2. Step 2: Convert to fraction form
   212,882.72/319,231.34 = 61,046.30/x
3. Step 3: Cross multiply
   212,882.72x = 319,231.34 × 61,046.30
4. Step 4: Simplify right side
   212,882.72x = 19,487,892,151.04
5. Step 5: Solve for x
   x = 19,487,892,151.04/212,882.72
6. Step 6: Final answer
   x = 91,542.86