Finding the Fourth Proportional to 105,042.82, 157,564.15 and 31,170.82

Step by Step Solution

1. Step 1: Write the proportion equation
   105,042.82 : 157,564.15 = 31,170.82 : x
2. Step 2: Convert to fraction form
   105,042.82/157,564.15 = 31,170.82/x
3. Step 3: Cross multiply
   105,042.82x = 157,564.15 × 31,170.82
4. Step 4: Simplify right side
   105,042.82x = 4,911,403,758.10
5. Step 5: Solve for x
   x = 4,911,403,758.10/105,042.82
6. Step 6: Final answer
   x = 46,756.21