Finding the Fourth Proportional to 114,762.78, 171,615.69 and 109,164.06

Step by Step Solution

1. Step 1: Write the proportion equation
   114,762.78 : 171,615.69 = 109,164.06 : x
2. Step 2: Convert to fraction form
   114,762.78/171,615.69 = 109,164.06/x
3. Step 3: Cross multiply
   114,762.78x = 171,615.69 × 109,164.06
4. Step 4: Simplify right side
   114,762.78x = 18,734,265,480.10
5. Step 5: Solve for x
   x = 18,734,265,480.10/114,762.78
6. Step 6: Final answer
   x = 163,243.39