Finding the Fourth Proportional to 105,010.88, 144,918.68 and 59,690.79

Step by Step Solution

1. Step 1: Write the proportion equation
   105,010.88 : 144,918.68 = 59,690.79 : x
2. Step 2: Convert to fraction form
   105,010.88/144,918.68 = 59,690.79/x
3. Step 3: Cross multiply
   105,010.88x = 144,918.68 × 59,690.79
4. Step 4: Simplify right side
   105,010.88x = 8,650,310,196.50
5. Step 5: Solve for x
   x = 8,650,310,196.50/105,010.88
6. Step 6: Final answer
   x = 82,375.37