Finding the Fourth Proportional to 113,648.72, 156,835.92 and 65,930.48

Step by Step Solution

1. Step 1: Write the proportion equation
   113,648.72 : 156,835.92 = 65,930.48 : x
2. Step 2: Convert to fraction form
   113,648.72/156,835.92 = 65,930.48/x
3. Step 3: Cross multiply
   113,648.72x = 156,835.92 × 65,930.48
4. Step 4: Simplify right side
   113,648.72x = 10,340,267,486.84
5. Step 5: Solve for x
   x = 10,340,267,486.84/113,648.72
6. Step 6: Final answer
   x = 90,984.46