Finding the Fourth Proportional to 31,048.12, 42,855.78 and 29,460.88

Step by Step Solution

1. Step 1: Write the proportion equation
   31,048.12 : 42,855.78 = 29,460.88 : x
2. Step 2: Convert to fraction form
   31,048.12/42,855.78 = 29,460.88/x
3. Step 3: Cross multiply
   31,048.12x = 42,855.78 × 29,460.88
4. Step 4: Simplify right side
   31,048.12x = 1,262,568,991.89
5. Step 5: Solve for x
   x = 1,262,568,991.89/31,048.12
6. Step 6: Final answer
   x = 40,664.91