Finding the Fourth Proportional to 115,100.56, 172,665.42 and 31,994.56

Step by Step Solution

1. Step 1: Write the proportion equation
   115,100.56 : 172,665.42 = 31,994.56 : x
2. Step 2: Convert to fraction form
   115,100.56/172,665.42 = 31,994.56/x
3. Step 3: Cross multiply
   115,100.56x = 172,665.42 × 31,994.56
4. Step 4: Simplify right side
   115,100.56x = 5,524,354,140.12
5. Step 5: Solve for x
   x = 5,524,354,140.12/115,100.56
6. Step 6: Final answer
   x = 47,995.89