Finding the Fourth Proportional to 105,144.12, 145,086.12 and 59,827.86

Step by Step Solution

1. Step 1: Write the proportion equation
   105,144.12 : 145,086.12 = 59,827.86 : x
2. Step 2: Convert to fraction form
   105,144.12/145,086.12 = 59,827.86/x
3. Step 3: Cross multiply
   105,144.12x = 145,086.12 × 59,827.86
4. Step 4: Simplify right side
   105,144.12x = 8,680,192,075.30
5. Step 5: Solve for x
   x = 8,680,192,075.30/105,144.12
6. Step 6: Final answer
   x = 82,555.18