Finding the Fourth Proportional to 105,469.76, 158,221.05 and 34,375.89

Step by Step Solution

1. Step 1: Write the proportion equation
   105,469.76 : 158,221.05 = 34,375.89 : x
2. Step 2: Convert to fraction form
   105,469.76/158,221.05 = 34,375.89/x
3. Step 3: Cross multiply
   105,469.76x = 158,221.05 × 34,375.89
4. Step 4: Simplify right side
   105,469.76x = 5,438,989,410.48
5. Step 5: Solve for x
   x = 5,438,989,410.48/105,469.76
6. Step 6: Final answer
   x = 51,569.19