Finding the Fourth Proportional to 115,974.98, 158,846.29 and 109,166.12

Step by Step Solution

1. Step 1: Write the proportion equation
   115,974.98 : 158,846.29 = 109,166.12 : x
2. Step 2: Convert to fraction form
   115,974.98/158,846.29 = 109,166.12/x
3. Step 3: Cross multiply
   115,974.98x = 158,846.29 × 109,166.12
4. Step 4: Simplify right side
   115,974.98x = 17,340,633,155.69
5. Step 5: Solve for x
   x = 17,340,633,155.69/115,974.98
6. Step 6: Final answer
   x = 149,520.47