Finding the Fourth Proportional to 22,006.84, 30,339.06 and 21,317.56

Step by Step Solution

1. Step 1: Write the proportion equation
   22,006.84 : 30,339.06 = 21,317.56 : x
2. Step 2: Convert to fraction form
   22,006.84/30,339.06 = 21,317.56/x
3. Step 3: Cross multiply
   22,006.84x = 30,339.06 × 21,317.56
4. Step 4: Simplify right side
   22,006.84x = 646,754,731.89
5. Step 5: Solve for x
   x = 646,754,731.89/22,006.84
6. Step 6: Final answer
   x = 29,388.81