Finding the Fourth Proportional to 118,362.89, 163,340.79 and 64,648.04

Step by Step Solution

1. Step 1: Write the proportion equation
   118,362.89 : 163,340.79 = 64,648.04 : x
2. Step 2: Convert to fraction form
   118,362.89/163,340.79 = 64,648.04/x
3. Step 3: Cross multiply
   118,362.89x = 163,340.79 × 64,648.04
4. Step 4: Simplify right side
   118,362.89x = 10,559,660,866.42
5. Step 5: Solve for x
   x = 10,559,660,866.42/118,362.89
6. Step 6: Final answer
   x = 89,214.29