Finding the Fourth Proportional to 105,511.40, 158,268.78 and 34,433.76

Step by Step Solution

1. Step 1: Write the proportion equation
   105,511.40 : 158,268.78 = 34,433.76 : x
2. Step 2: Convert to fraction form
   105,511.40/158,268.78 = 34,433.76/x
3. Step 3: Cross multiply
   105,511.40x = 158,268.78 × 34,433.76
4. Step 4: Simplify right side
   105,511.40x = 5,449,789,186.01
5. Step 5: Solve for x
   x = 5,449,789,186.01/105,511.40
6. Step 6: Final answer
   x = 51,651.19