Finding the Fourth Proportional to 145,185.91, 200,269.67 and 91,377.51

Step by Step Solution

1. Step 1: Write the proportion equation
   145,185.91 : 200,269.67 = 91,377.51 : x
2. Step 2: Convert to fraction form
   145,185.91/200,269.67 = 91,377.51/x
3. Step 3: Cross multiply
   145,185.91x = 200,269.67 × 91,377.51
4. Step 4: Simplify right side
   145,185.91x = 18,300,143,773.12
5. Step 5: Solve for x
   x = 18,300,143,773.12/145,185.91
6. Step 6: Final answer
   x = 126,046.28