Finding the Fourth Proportional to 31,131.48, 46,703.88 and 10,072.68

Step by Step Solution

1. Step 1: Write the proportion equation
   31,131.48 : 46,703.88 = 10,072.68 : x
2. Step 2: Convert to fraction form
   31,131.48/46,703.88 = 10,072.68/x
3. Step 3: Cross multiply
   31,131.48x = 46,703.88 × 10,072.68
4. Step 4: Simplify right side
   31,131.48x = 470,433,238.00
5. Step 5: Solve for x
   x = 470,433,238.00/31,131.48
6. Step 6: Final answer
   x = 15,111.17