Finding the Fourth Proportional to 116,559.01, 160,851.18 and 65,571.77

Step by Step Solution

1. Step 1: Write the proportion equation
   116,559.01 : 160,851.18 = 65,571.77 : x
2. Step 2: Convert to fraction form
   116,559.01/160,851.18 = 65,571.77/x
3. Step 3: Cross multiply
   116,559.01x = 160,851.18 × 65,571.77
4. Step 4: Simplify right side
   116,559.01x = 10,547,296,579.19
5. Step 5: Solve for x
   x = 10,547,296,579.19/116,559.01
6. Step 6: Final answer
   x = 90,488.90