Finding the Fourth Proportional to 22,475.27, 31,016.93 and 12,405.15

Step by Step Solution

1. Step 1: Write the proportion equation
   22,475.27 : 31,016.93 = 12,405.15 : x
2. Step 2: Convert to fraction form
   22,475.27/31,016.93 = 12,405.15/x
3. Step 3: Cross multiply
   22,475.27x = 31,016.93 × 12,405.15
4. Step 4: Simplify right side
   22,475.27x = 384,769,607.16
5. Step 5: Solve for x
   x = 384,769,607.16/22,475.27
6. Step 6: Final answer
   x = 17,119.69