Finding the Fourth Proportional to 295,386.72, 407,631.52 and 161,250.72

Step by Step Solution

1. Step 1: Write the proportion equation
   295,386.72 : 407,631.52 = 161,250.72 : x
2. Step 2: Convert to fraction form
   295,386.72/407,631.52 = 161,250.72/x
3. Step 3: Cross multiply
   295,386.72x = 407,631.52 × 161,250.72
4. Step 4: Simplify right side
   295,386.72x = 65,730,876,094.69
5. Step 5: Solve for x
   x = 65,730,876,094.69/295,386.72
6. Step 6: Final answer
   x = 222,524.82