Finding the Fourth Proportional to 115,621.72, 173,444.13 and 31,383.25

Step by Step Solution

1. Step 1: Write the proportion equation
   115,621.72 : 173,444.13 = 31,383.25 : x
2. Step 2: Convert to fraction form
   115,621.72/173,444.13 = 31,383.25/x
3. Step 3: Cross multiply
   115,621.72x = 173,444.13 × 31,383.25
4. Step 4: Simplify right side
   115,621.72x = 5,443,240,059.21
5. Step 5: Solve for x
   x = 5,443,240,059.21/115,621.72
6. Step 6: Final answer
   x = 47,078.01