Finding the Fourth Proportional to 131,609.59, 181,605.86 and 74,249.81

Step by Step Solution

1. Step 1: Write the proportion equation
   131,609.59 : 181,605.86 = 74,249.81 : x
2. Step 2: Convert to fraction form
   131,609.59/181,605.86 = 74,249.81/x
3. Step 3: Cross multiply
   131,609.59x = 181,605.86 × 74,249.81
4. Step 4: Simplify right side
   131,609.59x = 13,484,200,682.65
5. Step 5: Solve for x
   x = 13,484,200,682.65/131,609.59
6. Step 6: Final answer
   x = 102,456.06