Finding the Fourth Proportional to 200,560.72, 300,740.91 and 65,607.17

Step by Step Solution

1. Step 1: Write the proportion equation
   200,560.72 : 300,740.91 = 65,607.17 : x
2. Step 2: Convert to fraction form
   200,560.72/300,740.91 = 65,607.17/x
3. Step 3: Cross multiply
   200,560.72x = 300,740.91 × 65,607.17
4. Step 4: Simplify right side
   200,560.72x = 19,730,760,008.32
5. Step 5: Solve for x
   x = 19,730,760,008.32/200,560.72
6. Step 6: Final answer
   x = 98,377.99