Finding the Fourth Proportional to 105,233.60, 157,843.20 and 34,155.20

Step by Step Solution

1. Step 1: Write the proportion equation
   105,233.60 : 157,843.20 = 34,155.20 : x
2. Step 2: Convert to fraction form
   105,233.60/157,843.20 = 34,155.20/x
3. Step 3: Cross multiply
   105,233.60x = 157,843.20 × 34,155.20
4. Step 4: Simplify right side
   105,233.60x = 5,391,166,064.64
5. Step 5: Solve for x
   x = 5,391,166,064.64/105,233.60
6. Step 6: Final answer
   x = 51,230.46