Finding the Fourth Proportional to 105,399.82, 145,410.90 and 67,152.52

Step by Step Solution

1. Step 1: Write the proportion equation
   105,399.82 : 145,410.90 = 67,152.52 : x
2. Step 2: Convert to fraction form
   105,399.82/145,410.90 = 67,152.52/x
3. Step 3: Cross multiply
   105,399.82x = 145,410.90 × 67,152.52
4. Step 4: Simplify right side
   105,399.82x = 9,764,708,370.47
5. Step 5: Solve for x
   x = 9,764,708,370.47/105,399.82
6. Step 6: Final answer
   x = 92,644.45