Finding the Fourth Proportional to 22,475.95, 31,016.39 and 12,403.80

Step by Step Solution

1. Step 1: Write the proportion equation
   22,475.95 : 31,016.39 = 12,403.80 : x
2. Step 2: Convert to fraction form
   22,475.95/31,016.39 = 12,403.80/x
3. Step 3: Cross multiply
   22,475.95x = 31,016.39 × 12,403.80
4. Step 4: Simplify right side
   22,475.95x = 384,721,036.26
5. Step 5: Solve for x
   x = 384,721,036.26/22,475.95
6. Step 6: Final answer
   x = 17,117.01