Finding the Fourth Proportional to 22,614.71, 31,211.96 and 21,618.09

Step by Step Solution

1. Step 1: Write the proportion equation
   22,614.71 : 31,211.96 = 21,618.09 : x
2. Step 2: Convert to fraction form
   22,614.71/31,211.96 = 21,618.09/x
3. Step 3: Cross multiply
   22,614.71x = 31,211.96 × 21,618.09
4. Step 4: Simplify right side
   22,614.71x = 674,742,852.27
5. Step 5: Solve for x
   x = 674,742,852.27/22,614.71
6. Step 6: Final answer
   x = 29,836.46