Finding the Fourth Proportional to 105,762.38, 145,950.72 and 60,439.84

Step by Step Solution

1. Step 1: Write the proportion equation
   105,762.38 : 145,950.72 = 60,439.84 : x
2. Step 2: Convert to fraction form
   105,762.38/145,950.72 = 60,439.84/x
3. Step 3: Cross multiply
   105,762.38x = 145,950.72 × 60,439.84
4. Step 4: Simplify right side
   105,762.38x = 8,821,238,347.12
5. Step 5: Solve for x
   x = 8,821,238,347.12/105,762.38
6. Step 6: Final answer
   x = 83,406.20