Finding the Fourth Proportional to 298,256.72, 447,061.72 and 148,608.72

Step by Step Solution

1. Step 1: Write the proportion equation
   298,256.72 : 447,061.72 = 148,608.72 : x
2. Step 2: Convert to fraction form
   298,256.72/447,061.72 = 148,608.72/x
3. Step 3: Cross multiply
   298,256.72x = 447,061.72 × 148,608.72
4. Step 4: Simplify right side
   298,256.72x = 66,437,269,970.20
5. Step 5: Solve for x
   x = 66,437,269,970.20/298,256.72
6. Step 6: Final answer
   x = 222,751.96