Finding the Fourth Proportional to 105,382.96, 145,362 and 73,540.24

Step by Step Solution

1. Step 1: Write the proportion equation
   105,382.96 : 145,362 = 73,540.24 : x
2. Step 2: Convert to fraction form
   105,382.96/145,362 = 73,540.24/x
3. Step 3: Cross multiply
   105,382.96x = 145,362 × 73,540.24
4. Step 4: Simplify right side
   105,382.96x = 10,689,956,366.88
5. Step 5: Solve for x
   x = 10,689,956,366.88/105,382.96
6. Step 6: Final answer
   x = 101,439.14