Finding the Fourth Proportional to 22,332.22, 30,817.34 and 12,900.22

Step by Step Solution

1. Step 1: Write the proportion equation
   22,332.22 : 30,817.34 = 12,900.22 : x
2. Step 2: Convert to fraction form
   22,332.22/30,817.34 = 12,900.22/x
3. Step 3: Cross multiply
   22,332.22x = 30,817.34 × 12,900.22
4. Step 4: Simplify right side
   22,332.22x = 397,550,465.81
5. Step 5: Solve for x
   x = 397,550,465.81/22,332.22
6. Step 6: Final answer
   x = 17,801.65