Finding the Fourth Proportional to 115,051.28, 172,586.52 and 31,945.52

Step by Step Solution

1. Step 1: Write the proportion equation
   115,051.28 : 172,586.52 = 31,945.52 : x
2. Step 2: Convert to fraction form
   115,051.28/172,586.52 = 31,945.52/x
3. Step 3: Cross multiply
   115,051.28x = 172,586.52 × 31,945.52
4. Step 4: Simplify right side
   115,051.28x = 5,513,366,126.39
5. Step 5: Solve for x
   x = 5,513,366,126.39/115,051.28
6. Step 6: Final answer
   x = 47,920.95