Finding the Fourth Proportional to 105,188.27, 145,172.27 and 59,249.42

Step by Step Solution

1. Step 1: Write the proportion equation
   105,188.27 : 145,172.27 = 59,249.42 : x
2. Step 2: Convert to fraction form
   105,188.27/145,172.27 = 59,249.42/x
3. Step 3: Cross multiply
   105,188.27x = 145,172.27 × 59,249.42
4. Step 4: Simplify right side
   105,188.27x = 8,601,373,580.84
5. Step 5: Solve for x
   x = 8,601,373,580.84/105,188.27
6. Step 6: Final answer
   x = 81,771.22