Finding the Fourth Proportional to 22,705.04, 31,336.71 and 13,271.78

Step by Step Solution

1. Step 1: Write the proportion equation
   22,705.04 : 31,336.71 = 13,271.78 : x
2. Step 2: Convert to fraction form
   22,705.04/31,336.71 = 13,271.78/x
3. Step 3: Cross multiply
   22,705.04x = 31,336.71 × 13,271.78
4. Step 4: Simplify right side
   22,705.04x = 415,893,921.04
5. Step 5: Solve for x
   x = 415,893,921.04/22,705.04
6. Step 6: Final answer
   x = 18,317.25