Finding the Fourth Proportional to 80,106.72, 110,550.18 and 51,812.40

Step by Step Solution

1. Step 1: Write the proportion equation
   80,106.72 : 110,550.18 = 51,812.40 : x
2. Step 2: Convert to fraction form
   80,106.72/110,550.18 = 51,812.40/x
3. Step 3: Cross multiply
   80,106.72x = 110,550.18 × 51,812.40
4. Step 4: Simplify right side
   80,106.72x = 5,727,870,146.23
5. Step 5: Solve for x
   x = 5,727,870,146.23/80,106.72
6. Step 6: Final answer
   x = 71,502.99