Finding the Fourth Proportional to 105,050.69, 144,971.00 and 57,305.04

Step by Step Solution

1. Step 1: Write the proportion equation
   105,050.69 : 144,971.00 = 57,305.04 : x
2. Step 2: Convert to fraction form
   105,050.69/144,971.00 = 57,305.04/x
3. Step 3: Cross multiply
   105,050.69x = 144,971.00 × 57,305.04
4. Step 4: Simplify right side
   105,050.69x = 8,307,568,338.57
5. Step 5: Solve for x
   x = 8,307,568,338.57/105,050.69
6. Step 6: Final answer
   x = 79,081.52