Finding the Fourth Proportional to 118,447.14, 163,456.69 and 64,732.16

Step by Step Solution

1. Step 1: Write the proportion equation
   118,447.14 : 163,456.69 = 64,732.16 : x
2. Step 2: Convert to fraction form
   118,447.14/163,456.69 = 64,732.16/x
3. Step 3: Cross multiply
   118,447.14x = 163,456.69 × 64,732.16
4. Step 4: Simplify right side
   118,447.14x = 10,580,904,610.15
5. Step 5: Solve for x
   x = 10,580,904,610.15/118,447.14
6. Step 6: Final answer
   x = 89,330.18