Finding the Fourth Proportional to 105,015.88, 144,924.15 and 59,074.30

Step by Step Solution

1. Step 1: Write the proportion equation
   105,015.88 : 144,924.15 = 59,074.30 : x
2. Step 2: Convert to fraction form
   105,015.88/144,924.15 = 59,074.30/x
3. Step 3: Cross multiply
   105,015.88x = 144,924.15 × 59,074.30
4. Step 4: Simplify right side
   105,015.88x = 8,561,292,714.35
5. Step 5: Solve for x
   x = 8,561,292,714.35/105,015.88
6. Step 6: Final answer
   x = 81,523.79