Finding the Fourth Proportional to 215,304.89, 322,863.98 and 65,510.37

Step by Step Solution

1. Step 1: Write the proportion equation
   215,304.89 : 322,863.98 = 65,510.37 : x
2. Step 2: Convert to fraction form
   215,304.89/322,863.98 = 65,510.37/x
3. Step 3: Cross multiply
   215,304.89x = 322,863.98 × 65,510.37
4. Step 4: Simplify right side
   215,304.89x = 21,150,938,461.92
5. Step 5: Solve for x
   x = 21,150,938,461.92/215,304.89
6. Step 6: Final answer
   x = 98,237.15