Finding the Fourth Proportional to 113,863.18, 155,991.83 and 109,605.19

Step by Step Solution

1. Step 1: Write the proportion equation
   113,863.18 : 155,991.83 = 109,605.19 : x
2. Step 2: Convert to fraction form
   113,863.18/155,991.83 = 109,605.19/x
3. Step 3: Cross multiply
   113,863.18x = 155,991.83 × 109,605.19
4. Step 4: Simplify right side
   113,863.18x = 17,097,514,165.60
5. Step 5: Solve for x
   x = 17,097,514,165.60/113,863.18
6. Step 6: Final answer
   x = 150,158.41