Finding the Fourth Proportional to 105,049.71, 144,969.53 and 57,303.27

Step by Step Solution

1. Step 1: Write the proportion equation
   105,049.71 : 144,969.53 = 57,303.27 : x
2. Step 2: Convert to fraction form
   105,049.71/144,969.53 = 57,303.27/x
3. Step 3: Cross multiply
   105,049.71x = 144,969.53 × 57,303.27
4. Step 4: Simplify right side
   105,049.71x = 8,307,227,832.85
5. Step 5: Solve for x
   x = 8,307,227,832.85/105,049.71
6. Step 6: Final answer
   x = 79,079.02