Finding the Fourth Proportional to 116,644.50, 160,983.60 and 65,676.34

Step by Step Solution

1. Step 1: Write the proportion equation
   116,644.50 : 160,983.60 = 65,676.34 : x
2. Step 2: Convert to fraction form
   116,644.50/160,983.60 = 65,676.34/x
3. Step 3: Cross multiply
   116,644.50x = 160,983.60 × 65,676.34
4. Step 4: Simplify right side
   116,644.50x = 10,572,813,648.02
5. Step 5: Solve for x
   x = 10,572,813,648.02/116,644.50
6. Step 6: Final answer
   x = 90,641.34