Finding the Fourth Proportional to 21,435.39, 29,588.60 and 17,449.59

Step by Step Solution

1. Step 1: Write the proportion equation
   21,435.39 : 29,588.60 = 17,449.59 : x
2. Step 2: Convert to fraction form
   21,435.39/29,588.60 = 17,449.59/x
3. Step 3: Cross multiply
   21,435.39x = 29,588.60 × 17,449.59
4. Step 4: Simplify right side
   21,435.39x = 516,308,703.48
5. Step 5: Solve for x
   x = 516,308,703.48/21,435.39
6. Step 6: Final answer
   x = 24,086.74