Finding the Fourth Proportional to 22,785.01, 31,443.27 and 12,712.84

Step by Step Solution

1. Step 1: Write the proportion equation
   22,785.01 : 31,443.27 = 12,712.84 : x
2. Step 2: Convert to fraction form
   22,785.01/31,443.27 = 12,712.84/x
3. Step 3: Cross multiply
   22,785.01x = 31,443.27 × 12,712.84
4. Step 4: Simplify right side
   22,785.01x = 399,733,103.37
5. Step 5: Solve for x
   x = 399,733,103.37/22,785.01
6. Step 6: Final answer
   x = 17,543.69