Finding the Fourth Proportional to 70,791.14, 106,137.50 and 31,326.72

Step by Step Solution

1. Step 1: Write the proportion equation
   70,791.14 : 106,137.50 = 31,326.72 : x
2. Step 2: Convert to fraction form
   70,791.14/106,137.50 = 31,326.72/x
3. Step 3: Cross multiply
   70,791.14x = 106,137.50 × 31,326.72
4. Step 4: Simplify right side
   70,791.14x = 3,324,939,587.37
5. Step 5: Solve for x
   x = 3,324,939,587.37/70,791.14
6. Step 6: Final answer
   x = 46,968.30