Finding the Fourth Proportional to 105,869.32, 158,770.51 and 34,780.28

Step by Step Solution

1. Step 1: Write the proportion equation
   105,869.32 : 158,770.51 = 34,780.28 : x
2. Step 2: Convert to fraction form
   105,869.32/158,770.51 = 34,780.28/x
3. Step 3: Cross multiply
   105,869.32x = 158,770.51 × 34,780.28
4. Step 4: Simplify right side
   105,869.32x = 5,522,082,793.54
5. Step 5: Solve for x
   x = 5,522,082,793.54/105,869.32
6. Step 6: Final answer
   x = 52,159.42