Finding the Fourth Proportional to 22,606.56, 31,200.72 and 21,609.84

Step by Step Solution

1. Step 1: Write the proportion equation
   22,606.56 : 31,200.72 = 21,609.84 : x
2. Step 2: Convert to fraction form
   22,606.56/31,200.72 = 21,609.84/x
3. Step 3: Cross multiply
   22,606.56x = 31,200.72 × 21,609.84
4. Step 4: Simplify right side
   22,606.56x = 674,242,567.08
5. Step 5: Solve for x
   x = 674,242,567.08/22,606.56
6. Step 6: Final answer
   x = 29,825.08