Finding the Fourth Proportional to 116,616.18, 160,901.82 and 65,619

Step by Step Solution

1. Step 1: Write the proportion equation
   116,616.18 : 160,901.82 = 65,619 : x
2. Step 2: Convert to fraction form
   116,616.18/160,901.82 = 65,619/x
3. Step 3: Cross multiply
   116,616.18x = 160,901.82 × 65,619
4. Step 4: Simplify right side
   116,616.18x = 10,558,216,526.58
5. Step 5: Solve for x
   x = 10,558,216,526.58/116,616.18
6. Step 6: Final answer
   x = 90,538.18