Finding the Fourth Proportional to 118,478.88, 163,505.25 and 64,767.54

Step by Step Solution

1. Step 1: Write the proportion equation
   118,478.88 : 163,505.25 = 64,767.54 : x
2. Step 2: Convert to fraction form
   118,478.88/163,505.25 = 64,767.54/x
3. Step 3: Cross multiply
   118,478.88x = 163,505.25 × 64,767.54
4. Step 4: Simplify right side
   118,478.88x = 10,589,832,819.59
5. Step 5: Solve for x
   x = 10,589,832,819.59/118,478.88
6. Step 6: Final answer
   x = 89,381.61