Finding the Fourth Proportional to 22,397.53, 33,556.89 and 21,064.15

Step by Step Solution

1. Step 1: Write the proportion equation
   22,397.53 : 33,556.89 = 21,064.15 : x
2. Step 2: Convert to fraction form
   22,397.53/33,556.89 = 21,064.15/x
3. Step 3: Cross multiply
   22,397.53x = 33,556.89 × 21,064.15
4. Step 4: Simplify right side
   22,397.53x = 706,847,091.39
5. Step 5: Solve for x
   x = 706,847,091.39/22,397.53
6. Step 6: Final answer
   x = 31,559.15