Finding the Fourth Proportional to 116,579.01, 160,877.31 and 65,591.81

Step by Step Solution

1. Step 1: Write the proportion equation
   116,579.01 : 160,877.31 = 65,591.81 : x
2. Step 2: Convert to fraction form
   116,579.01/160,877.31 = 65,591.81/x
3. Step 3: Cross multiply
   116,579.01x = 160,877.31 × 65,591.81
4. Step 4: Simplify right side
   116,579.01x = 10,552,233,503.77
5. Step 5: Solve for x
   x = 10,552,233,503.77/116,579.01
6. Step 6: Final answer
   x = 90,515.72