Finding the Fourth Proportional to 105,106.24, 145,049.69 and 57,362.66

Step by Step Solution

1. Step 1: Write the proportion equation
   105,106.24 : 145,049.69 = 57,362.66 : x
2. Step 2: Convert to fraction form
   105,106.24/145,049.69 = 57,362.66/x
3. Step 3: Cross multiply
   105,106.24x = 145,049.69 × 57,362.66
4. Step 4: Simplify right side
   105,106.24x = 8,320,435,763.76
5. Step 5: Solve for x
   x = 8,320,435,763.76/105,106.24
6. Step 6: Final answer
   x = 79,162.15