Finding the Fourth Proportional to 105,185.08, 145,165.92 and 62,743.62

Step by Step Solution

1. Step 1: Write the proportion equation
   105,185.08 : 145,165.92 = 62,743.62 : x
2. Step 2: Convert to fraction form
   105,185.08/145,165.92 = 62,743.62/x
3. Step 3: Cross multiply
   105,185.08x = 145,165.92 × 62,743.62
4. Step 4: Simplify right side
   105,185.08x = 9,108,235,321.43
5. Step 5: Solve for x
   x = 9,108,235,321.43/105,185.08
6. Step 6: Final answer
   x = 86,592.46