Finding the Fourth Proportional to 243,128.69, 364,664.32 and 65,649.54

Step by Step Solution

1. Step 1: Write the proportion equation
   243,128.69 : 364,664.32 = 65,649.54 : x
2. Step 2: Convert to fraction form
   243,128.69/364,664.32 = 65,649.54/x
3. Step 3: Cross multiply
   243,128.69x = 364,664.32 × 65,649.54
4. Step 4: Simplify right side
   243,128.69x = 23,940,044,698.29
5. Step 5: Solve for x
   x = 23,940,044,698.29/243,128.69
6. Step 6: Final answer
   x = 98,466.56