Finding the Fourth Proportional to 105,681.72, 158,574.18 and 46,509.96

Step by Step Solution

1. Step 1: Write the proportion equation
   105,681.72 : 158,574.18 = 46,509.96 : x
2. Step 2: Convert to fraction form
   105,681.72/158,574.18 = 46,509.96/x
3. Step 3: Cross multiply
   105,681.72x = 158,574.18 × 46,509.96
4. Step 4: Simplify right side
   105,681.72x = 7,375,278,768.83
5. Step 5: Solve for x
   x = 7,375,278,768.83/105,681.72
6. Step 6: Final answer
   x = 69,787.65