Finding the Fourth Proportional to 113,401.69, 169,687.31 and 107,318.52

Step by Step Solution

1. Step 1: Write the proportion equation
   113,401.69 : 169,687.31 = 107,318.52 : x
2. Step 2: Convert to fraction form
   113,401.69/169,687.31 = 107,318.52/x
3. Step 3: Cross multiply
   113,401.69x = 169,687.31 × 107,318.52
4. Step 4: Simplify right side
   113,401.69x = 18,210,590,435.39
5. Step 5: Solve for x
   x = 18,210,590,435.39/113,401.69
6. Step 6: Final answer
   x = 160,584.83