Finding the Fourth Proportional to 116,461.96, 160,723.20 and 65,490.73

Step by Step Solution

1. Step 1: Write the proportion equation
   116,461.96 : 160,723.20 = 65,490.73 : x
2. Step 2: Convert to fraction form
   116,461.96/160,723.20 = 65,490.73/x
3. Step 3: Cross multiply
   116,461.96x = 160,723.20 × 65,490.73
4. Step 4: Simplify right side
   116,461.96x = 10,525,878,564.87
5. Step 5: Solve for x
   x = 10,525,878,564.87/116,461.96
6. Step 6: Final answer
   x = 90,380.40