Finding the Fourth Proportional to 95,456.17, 131,734.63 and 57,221.94

Step by Step Solution

1. Step 1: Write the proportion equation
   95,456.17 : 131,734.63 = 57,221.94 : x
2. Step 2: Convert to fraction form
   95,456.17/131,734.63 = 57,221.94/x
3. Step 3: Cross multiply
   95,456.17x = 131,734.63 × 57,221.94
4. Step 4: Simplify right side
   95,456.17x = 7,538,111,498.38
5. Step 5: Solve for x
   x = 7,538,111,498.38/95,456.17
6. Step 6: Final answer
   x = 78,969.35