Finding the Fourth Proportional to 116,505, 160,790.13 and 64,827.27

Step by Step Solution

1. Step 1: Write the proportion equation
   116,505 : 160,790.13 = 64,827.27 : x
2. Step 2: Convert to fraction form
   116,505/160,790.13 = 64,827.27/x
3. Step 3: Cross multiply
   116,505x = 160,790.13 × 64,827.27
4. Step 4: Simplify right side
   116,505x = 10,423,585,170.85
5. Step 5: Solve for x
   x = 10,423,585,170.85/116,505
6. Step 6: Final answer
   x = 89,468.99