Finding the Fourth Proportional to 243,215.79, 364,831.89 and 65,724.34

Step by Step Solution

1. Step 1: Write the proportion equation
   243,215.79 : 364,831.89 = 65,724.34 : x
2. Step 2: Convert to fraction form
   243,215.79/364,831.89 = 65,724.34/x
3. Step 3: Cross multiply
   243,215.79x = 364,831.89 × 65,724.34
4. Step 4: Simplify right side
   243,215.79x = 23,978,335,181.20
5. Step 5: Solve for x
   x = 23,978,335,181.20/243,215.79
6. Step 6: Final answer
   x = 98,588.73