Finding the Fourth Proportional to 368,214.72, 508,128.72 and 204,867.60

Step by Step Solution

1. Step 1: Write the proportion equation
   368,214.72 : 508,128.72 = 204,867.60 : x
2. Step 2: Convert to fraction form
   368,214.72/508,128.72 = 204,867.60/x
3. Step 3: Cross multiply
   368,214.72x = 508,128.72 × 204,867.60
4. Step 4: Simplify right side
   368,214.72x = 104,099,111,357.47
5. Step 5: Solve for x
   x = 104,099,111,357.47/368,214.72
6. Step 6: Final answer
   x = 282,713.06