Finding the Fourth Proportional to 118,238.05, 163,168.96 and 64,524.25

Step by Step Solution

1. Step 1: Write the proportion equation
   118,238.05 : 163,168.96 = 64,524.25 : x
2. Step 2: Convert to fraction form
   118,238.05/163,168.96 = 64,524.25/x
3. Step 3: Cross multiply
   118,238.05x = 163,168.96 × 64,524.25
4. Step 4: Simplify right side
   118,238.05x = 10,528,354,767.28
5. Step 5: Solve for x
   x = 10,528,354,767.28/118,238.05
6. Step 6: Final answer
   x = 89,043.71