Finding the Fourth Proportional to 105,781.63, 158,594.69 and 50,416.51

Step by Step Solution

1. Step 1: Write the proportion equation
   105,781.63 : 158,594.69 = 50,416.51 : x
2. Step 2: Convert to fraction form
   105,781.63/158,594.69 = 50,416.51/x
3. Step 3: Cross multiply
   105,781.63x = 158,594.69 × 50,416.51
4. Step 4: Simplify right side
   105,781.63x = 7,995,790,522.25
5. Step 5: Solve for x
   x = 7,995,790,522.25/105,781.63
6. Step 6: Final answer
   x = 75,587.70