Finding the Fourth Proportional to 198,680.18, 298,030.58 and 65,570.82

Step by Step Solution

1. Step 1: Write the proportion equation
   198,680.18 : 298,030.58 = 65,570.82 : x
2. Step 2: Convert to fraction form
   198,680.18/298,030.58 = 65,570.82/x
3. Step 3: Cross multiply
   198,680.18x = 298,030.58 × 65,570.82
4. Step 4: Simplify right side
   198,680.18x = 19,542,108,223.89
5. Step 5: Solve for x
   x = 19,542,108,223.89/198,680.18
6. Step 6: Final answer
   x = 98,359.63