Finding the Fourth Proportional to 195,131.72, 292,663.56 and 54,857

Step by Step Solution

1. Step 1: Write the proportion equation
   195,131.72 : 292,663.56 = 54,857 : x
2. Step 2: Convert to fraction form
   195,131.72/292,663.56 = 54,857/x
3. Step 3: Cross multiply
   195,131.72x = 292,663.56 × 54,857
4. Step 4: Simplify right side
   195,131.72x = 16,054,644,910.92
5. Step 5: Solve for x
   x = 16,054,644,910.92/195,131.72
6. Step 6: Final answer
   x = 82,275.94