Finding the Fourth Proportional to 116,559.71, 160,850.86 and 65,572.28

Step by Step Solution

1. Step 1: Write the proportion equation
   116,559.71 : 160,850.86 = 65,572.28 : x
2. Step 2: Convert to fraction form
   116,559.71/160,850.86 = 65,572.28/x
3. Step 3: Cross multiply
   116,559.71x = 160,850.86 × 65,572.28
4. Step 4: Simplify right side
   116,559.71x = 10,547,356,661.98
5. Step 5: Solve for x
   x = 10,547,356,661.98/116,559.71
6. Step 6: Final answer
   x = 90,488.88