Finding the Fourth Proportional to 22,475.90, 31,016.71 and 12,404.34

Step by Step Solution

1. Step 1: Write the proportion equation
   22,475.90 : 31,016.71 = 12,404.34 : x
2. Step 2: Convert to fraction form
   22,475.90/31,016.71 = 12,404.34/x
3. Step 3: Cross multiply
   22,475.90x = 31,016.71 × 12,404.34
4. Step 4: Simplify right side
   22,475.90x = 384,741,785.51
5. Step 5: Solve for x
   x = 384,741,785.51/22,475.90
6. Step 6: Final answer
   x = 17,117.97