Finding the Fourth Proportional to 103,168.15, 154,721.38 and 31,118.04

Step by Step Solution

1. Step 1: Write the proportion equation
   103,168.15 : 154,721.38 = 31,118.04 : x
2. Step 2: Convert to fraction form
   103,168.15/154,721.38 = 31,118.04/x
3. Step 3: Cross multiply
   103,168.15x = 154,721.38 × 31,118.04
4. Step 4: Simplify right side
   103,168.15x = 4,814,626,091.70
5. Step 5: Solve for x
   x = 4,814,626,091.70/103,168.15
6. Step 6: Final answer
   x = 46,667.76