Finding the Fourth Proportional to 150,956.25, 207,959.56 and 105,549.27

Step by Step Solution

1. Step 1: Write the proportion equation
   150,956.25 : 207,959.56 = 105,549.27 : x
2. Step 2: Convert to fraction form
   150,956.25/207,959.56 = 105,549.27/x
3. Step 3: Cross multiply
   150,956.25x = 207,959.56 × 105,549.27
4. Step 4: Simplify right side
   150,956.25x = 21,949,979,747.52
5. Step 5: Solve for x
   x = 21,949,979,747.52/150,956.25
6. Step 6: Final answer
   x = 145,406.23