Finding the Fourth Proportional to 320,973.48, 442,938.00 and 177,730.45

Step by Step Solution

1. Step 1: Write the proportion equation
   320,973.48 : 442,938.00 = 177,730.45 : x
2. Step 2: Convert to fraction form
   320,973.48/442,938.00 = 177,730.45/x
3. Step 3: Cross multiply
   320,973.48x = 442,938.00 × 177,730.45
4. Step 4: Simplify right side
   320,973.48x = 78,723,569,173.45
5. Step 5: Solve for x
   x = 78,723,569,173.45/320,973.48
6. Step 6: Final answer
   x = 245,265.02