Finding the Fourth Proportional to 200,562.72, 300,743.90 and 65,609.18

Step by Step Solution

1. Step 1: Write the proportion equation
   200,562.72 : 300,743.90 = 65,609.18 : x
2. Step 2: Convert to fraction form
   200,562.72/300,743.90 = 65,609.18/x
3. Step 3: Cross multiply
   200,562.72x = 300,743.90 × 65,609.18
4. Step 4: Simplify right side
   200,562.72x = 19,731,560,669.00
5. Step 5: Solve for x
   x = 19,731,560,669.00/200,562.72
6. Step 6: Final answer
   x = 98,381.00