Finding the Fourth Proportional to 31,055.32, 46,568.72 and 9,991.48

Step by Step Solution

1. Step 1: Write the proportion equation
   31,055.32 : 46,568.72 = 9,991.48 : x
2. Step 2: Convert to fraction form
   31,055.32/46,568.72 = 9,991.48/x
3. Step 3: Cross multiply
   31,055.32x = 46,568.72 × 9,991.48
4. Step 4: Simplify right side
   31,055.32x = 465,290,434.51
5. Step 5: Solve for x
   x = 465,290,434.51/31,055.32
6. Step 6: Final answer
   x = 14,982.63