Finding the Fourth Proportional to 295,470.72, 407,748.96 and 161,334.72

Step by Step Solution

1. Step 1: Write the proportion equation
   295,470.72 : 407,748.96 = 161,334.72 : x
2. Step 2: Convert to fraction form
   295,470.72/407,748.96 = 161,334.72/x
3. Step 3: Cross multiply
   295,470.72x = 407,748.96 × 161,334.72
4. Step 4: Simplify right side
   295,470.72x = 65,784,064,291.89
5. Step 5: Solve for x
   x = 65,784,064,291.89/295,470.72
6. Step 6: Final answer
   x = 222,641.57