Finding the Fourth Proportional to 116,463.43, 160,715.81 and 65,478.32

Step by Step Solution

1. Step 1: Write the proportion equation
   116,463.43 : 160,715.81 = 65,478.32 : x
2. Step 2: Convert to fraction form
   116,463.43/160,715.81 = 65,478.32/x
3. Step 3: Cross multiply
   116,463.43x = 160,715.81 × 65,478.32
4. Step 4: Simplify right side
   116,463.43x = 10,523,401,199.04
5. Step 5: Solve for x
   x = 10,523,401,199.04/116,463.43
6. Step 6: Final answer
   x = 90,357.99