Finding the Fourth Proportional to 116,416.67, 160,668.32 and 64,738.91

Step by Step Solution

1. Step 1: Write the proportion equation
   116,416.67 : 160,668.32 = 64,738.91 : x
2. Step 2: Convert to fraction form
   116,416.67/160,668.32 = 64,738.91/x
3. Step 3: Cross multiply
   116,416.67x = 160,668.32 × 64,738.91
4. Step 4: Simplify right side
   116,416.67x = 10,401,491,986.31
5. Step 5: Solve for x
   x = 10,401,491,986.31/116,416.67
6. Step 6: Final answer
   x = 89,347.10