Finding the Fourth Proportional to 353,723.52, 487,980.72 and 238,965.24

Step by Step Solution

1. Step 1: Write the proportion equation
   353,723.52 : 487,980.72 = 238,965.24 : x
2. Step 2: Convert to fraction form
   353,723.52/487,980.72 = 238,965.24/x
3. Step 3: Cross multiply
   353,723.52x = 487,980.72 × 238,965.24
4. Step 4: Simplify right side
   353,723.52x = 116,610,429,870.17
5. Step 5: Solve for x
   x = 116,610,429,870.17/353,723.52
6. Step 6: Final answer
   x = 329,665.47