Finding the Fourth Proportional to 105,506.15, 158,260.91 and 34,428.51

Step by Step Solution

1. Step 1: Write the proportion equation
   105,506.15 : 158,260.91 = 34,428.51 : x
2. Step 2: Convert to fraction form
   105,506.15/158,260.91 = 34,428.51/x
3. Step 3: Cross multiply
   105,506.15x = 158,260.91 × 34,428.51
4. Step 4: Simplify right side
   105,506.15x = 5,448,687,150.40
5. Step 5: Solve for x
   x = 5,448,687,150.40/105,506.15
6. Step 6: Final answer
   x = 51,643.32