Finding the Fourth Proportional to 105,050.46, 144,970.56 and 57,304.02

Step by Step Solution

1. Step 1: Write the proportion equation
   105,050.46 : 144,970.56 = 57,304.02 : x
2. Step 2: Convert to fraction form
   105,050.46/144,970.56 = 57,304.02/x
3. Step 3: Cross multiply
   105,050.46x = 144,970.56 × 57,304.02
4. Step 4: Simplify right side
   105,050.46x = 8,307,395,869.65
5. Step 5: Solve for x
   x = 8,307,395,869.65/105,050.46
6. Step 6: Final answer
   x = 79,080.05