Finding the Fourth Proportional to 105,041.48, 144,943.56 and 59,718.50

Step by Step Solution

1. Step 1: Write the proportion equation
   105,041.48 : 144,943.56 = 59,718.50 : x
2. Step 2: Convert to fraction form
   105,041.48/144,943.56 = 59,718.50/x
3. Step 3: Cross multiply
   105,041.48x = 144,943.56 × 59,718.50
4. Step 4: Simplify right side
   105,041.48x = 8,655,811,806.68
5. Step 5: Solve for x
   x = 8,655,811,806.68/105,041.48
6. Step 6: Final answer
   x = 82,403.75