Finding the Fourth Proportional to 296,499.30, 409,164.12 and 160,532.16

Step by Step Solution

1. Step 1: Write the proportion equation
   296,499.30 : 409,164.12 = 160,532.16 : x
2. Step 2: Convert to fraction form
   296,499.30/409,164.12 = 160,532.16/x
3. Step 3: Cross multiply
   296,499.30x = 409,164.12 × 160,532.16
4. Step 4: Simplify right side
   296,499.30x = 65,683,999,978.10
5. Step 5: Solve for x
   x = 65,683,999,978.10/296,499.30
6. Step 6: Final answer
   x = 221,531.72