Finding the Fourth Proportional to 22,300.49, 30,812.92 and 21,502.23

Step by Step Solution

1. Step 1: Write the proportion equation
   22,300.49 : 30,812.92 = 21,502.23 : x
2. Step 2: Convert to fraction form
   22,300.49/30,812.92 = 21,502.23/x
3. Step 3: Cross multiply
   22,300.49x = 30,812.92 × 21,502.23
4. Step 4: Simplify right side
   22,300.49x = 662,546,439.06
5. Step 5: Solve for x
   x = 662,546,439.06/22,300.49
6. Step 6: Final answer
   x = 29,709.96