Finding the Fourth Proportional to 105,054.24, 144,987.18 and 59,739.12

Step by Step Solution

1. Step 1: Write the proportion equation
   105,054.24 : 144,987.18 = 59,739.12 : x
2. Step 2: Convert to fraction form
   105,054.24/144,987.18 = 59,739.12/x
3. Step 3: Cross multiply
   105,054.24x = 144,987.18 × 59,739.12
4. Step 4: Simplify right side
   105,054.24x = 8,661,406,544.48
5. Step 5: Solve for x
   x = 8,661,406,544.48/105,054.24
6. Step 6: Final answer
   x = 82,447.00