Finding the Fourth Proportional to 118,496.76, 163,524.42 and 64,781.61

Step by Step Solution

1. Step 1: Write the proportion equation
   118,496.76 : 163,524.42 = 64,781.61 : x
2. Step 2: Convert to fraction form
   118,496.76/163,524.42 = 64,781.61/x
3. Step 3: Cross multiply
   118,496.76x = 163,524.42 × 64,781.61
4. Step 4: Simplify right side
   118,496.76x = 10,593,374,588.70
5. Step 5: Solve for x
   x = 10,593,374,588.70/118,496.76
6. Step 6: Final answer
   x = 89,398.01