Finding the Fourth Proportional to 118,124.76, 163,007.82 and 64,408.80

Step by Step Solution

1. Step 1: Write the proportion equation
   118,124.76 : 163,007.82 = 64,408.80 : x
2. Step 2: Convert to fraction form
   118,124.76/163,007.82 = 64,408.80/x
3. Step 3: Cross multiply
   118,124.76x = 163,007.82 × 64,408.80
4. Step 4: Simplify right side
   118,124.76x = 10,499,138,076.82
5. Step 5: Solve for x
   x = 10,499,138,076.82/118,124.76
6. Step 6: Final answer
   x = 88,881.77