Finding the Fourth Proportional to 105,417.20, 158,136.84 and 34,345.37

Step by Step Solution

1. Step 1: Write the proportion equation
   105,417.20 : 158,136.84 = 34,345.37 : x
2. Step 2: Convert to fraction form
   105,417.20/158,136.84 = 34,345.37/x
3. Step 3: Cross multiply
   105,417.20x = 158,136.84 × 34,345.37
4. Step 4: Simplify right side
   105,417.20x = 5,431,268,280.43
5. Step 5: Solve for x
   x = 5,431,268,280.43/105,417.20
6. Step 6: Final answer
   x = 51,521.65