Finding the Fourth Proportional to 114,979.55, 158,671.55 and 64,678.55

Step by Step Solution

1. Step 1: Write the proportion equation
   114,979.55 : 158,671.55 = 64,678.55 : x
2. Step 2: Convert to fraction form
   114,979.55/158,671.55 = 64,678.55/x
3. Step 3: Cross multiply
   114,979.55x = 158,671.55 × 64,678.55
4. Step 4: Simplify right side
   114,979.55x = 10,262,645,456.86
5. Step 5: Solve for x
   x = 10,262,645,456.86/114,979.55
6. Step 6: Final answer
   x = 89,256.27