Finding the Fourth Proportional to 298,283.52, 447,865.92 and 199,061.76

Step by Step Solution

1. Step 1: Write the proportion equation
   298,283.52 : 447,865.92 = 199,061.76 : x
2. Step 2: Convert to fraction form
   298,283.52/447,865.92 = 199,061.76/x
3. Step 3: Cross multiply
   298,283.52x = 447,865.92 × 199,061.76
4. Step 4: Simplify right side
   298,283.52x = 89,152,978,279.22
5. Step 5: Solve for x
   x = 89,152,978,279.22/298,283.52
6. Step 6: Final answer
   x = 298,886.70