Finding the Fourth Proportional to 105,583.12, 158,223.12 and 63,480.40

Step by Step Solution

1. Step 1: Write the proportion equation
   105,583.12 : 158,223.12 = 63,480.40 : x
2. Step 2: Convert to fraction form
   105,583.12/158,223.12 = 63,480.40/x
3. Step 3: Cross multiply
   105,583.12x = 158,223.12 × 63,480.40
4. Step 4: Simplify right side
   105,583.12x = 10,044,066,946.85
5. Step 5: Solve for x
   x = 10,044,066,946.85/105,583.12
6. Step 6: Final answer
   x = 95,129.48