Finding the Fourth Proportional to 105,599.79, 158,005.98 and 104,418.81

Step by Step Solution

1. Step 1: Write the proportion equation
   105,599.79 : 158,005.98 = 104,418.81 : x
2. Step 2: Convert to fraction form
   105,599.79/158,005.98 = 104,418.81/x
3. Step 3: Cross multiply
   105,599.79x = 158,005.98 × 104,418.81
4. Step 4: Simplify right side
   105,599.79x = 16,498,796,404.48
5. Step 5: Solve for x
   x = 16,498,796,404.48/105,599.79
6. Step 6: Final answer
   x = 156,238.91