Finding the Fourth Proportional to 116,650.17, 160,974.59 and 64,966.91

Step by Step Solution

1. Step 1: Write the proportion equation
   116,650.17 : 160,974.59 = 64,966.91 : x
2. Step 2: Convert to fraction form
   116,650.17/160,974.59 = 64,966.91/x
3. Step 3: Cross multiply
   116,650.17x = 160,974.59 × 64,966.91
4. Step 4: Simplify right side
   116,650.17x = 10,458,020,571.11
5. Step 5: Solve for x
   x = 10,458,020,571.11/116,650.17
6. Step 6: Final answer
   x = 89,652.85