Finding the Fourth Proportional to 114,828, 172,242.72 and 31,722.72

Step by Step Solution

1. Step 1: Write the proportion equation
   114,828 : 172,242.72 = 31,722.72 : x
2. Step 2: Convert to fraction form
   114,828/172,242.72 = 31,722.72/x
3. Step 3: Cross multiply
   114,828x = 172,242.72 × 31,722.72
4. Step 4: Simplify right side
   114,828x = 5,464,007,578.60
5. Step 5: Solve for x
   x = 5,464,007,578.60/114,828
6. Step 6: Final answer
   x = 47,584.28