Finding the Fourth Proportional to 67,131.05, 100,723.94 and 43,142.22

Step by Step Solution

1. Step 1: Write the proportion equation
   67,131.05 : 100,723.94 = 43,142.22 : x
2. Step 2: Convert to fraction form
   67,131.05/100,723.94 = 43,142.22/x
3. Step 3: Cross multiply
   67,131.05x = 100,723.94 × 43,142.22
4. Step 4: Simplify right side
   67,131.05x = 4,345,454,233.82
5. Step 5: Solve for x
   x = 4,345,454,233.82/67,131.05
6. Step 6: Final answer
   x = 64,730.92