Finding the Fourth Proportional to 408,196.02, 563,322.69 and 247,080.54

Step by Step Solution

1. Step 1: Write the proportion equation
   408,196.02 : 563,322.69 = 247,080.54 : x
2. Step 2: Convert to fraction form
   408,196.02/563,322.69 = 247,080.54/x
3. Step 3: Cross multiply
   408,196.02x = 563,322.69 × 247,080.54
4. Step 4: Simplify right side
   408,196.02x = 139,186,074,439.45
5. Step 5: Solve for x
   x = 139,186,074,439.45/408,196.02
6. Step 6: Final answer
   x = 340,978.52