Finding the Fourth Proportional to 115,017.44, 158,687.43 and 64,706.72

Step by Step Solution

1. Step 1: Write the proportion equation
   115,017.44 : 158,687.43 = 64,706.72 : x
2. Step 2: Convert to fraction form
   115,017.44/158,687.43 = 64,706.72/x
3. Step 3: Cross multiply
   115,017.44x = 158,687.43 × 64,706.72
4. Step 4: Simplify right side
   115,017.44x = 10,268,143,100.53
5. Step 5: Solve for x
   x = 10,268,143,100.53/115,017.44
6. Step 6: Final answer
   x = 89,274.66