Finding the Fourth Proportional to 105,323.96, 145,311.58 and 59,969.86

Step by Step Solution

1. Step 1: Write the proportion equation
   105,323.96 : 145,311.58 = 59,969.86 : x
2. Step 2: Convert to fraction form
   105,323.96/145,311.58 = 59,969.86/x
3. Step 3: Cross multiply
   105,323.96x = 145,311.58 × 59,969.86
4. Step 4: Simplify right side
   105,323.96x = 8,714,315,108.98
5. Step 5: Solve for x
   x = 8,714,315,108.98/105,323.96
6. Step 6: Final answer
   x = 82,738.20