Finding the Fourth Proportional to 115,016.94, 158,686.74 and 64,706.22

Step by Step Solution

1. Step 1: Write the proportion equation
   115,016.94 : 158,686.74 = 64,706.22 : x
2. Step 2: Convert to fraction form
   115,016.94/158,686.74 = 64,706.22/x
3. Step 3: Cross multiply
   115,016.94x = 158,686.74 × 64,706.22
4. Step 4: Simplify right side
   115,016.94x = 10,268,019,109.52
5. Step 5: Solve for x
   x = 10,268,019,109.52/115,016.94
6. Step 6: Final answer
   x = 89,273.97