Finding the Fourth Proportional to 320,978.16, 481,181.72 and 152,394.48

Step by Step Solution

1. Step 1: Write the proportion equation
   320,978.16 : 481,181.72 = 152,394.48 : x
2. Step 2: Convert to fraction form
   320,978.16/481,181.72 = 152,394.48/x
3. Step 3: Cross multiply
   320,978.16x = 481,181.72 × 152,394.48
4. Step 4: Simplify right side
   320,978.16x = 73,329,437,242.93
5. Step 5: Solve for x
   x = 73,329,437,242.93/320,978.16
6. Step 6: Final answer
   x = 228,456.16