Finding the Fourth Proportional to 21,300.25, 29,367.03 and 17,457.74

Step by Step Solution

1. Step 1: Write the proportion equation
   21,300.25 : 29,367.03 = 17,457.74 : x
2. Step 2: Convert to fraction form
   21,300.25/29,367.03 = 17,457.74/x
3. Step 3: Cross multiply
   21,300.25x = 29,367.03 × 17,457.74
4. Step 4: Simplify right side
   21,300.25x = 512,681,974.31
5. Step 5: Solve for x
   x = 512,681,974.31/21,300.25
6. Step 6: Final answer
   x = 24,069.29