Finding the Fourth Proportional to 21,378.03, 29,526.22 and 17,419.56

Step by Step Solution

1. Step 1: Write the proportion equation
   21,378.03 : 29,526.22 = 17,419.56 : x
2. Step 2: Convert to fraction form
   21,378.03/29,526.22 = 17,419.56/x
3. Step 3: Cross multiply
   21,378.03x = 29,526.22 × 17,419.56
4. Step 4: Simplify right side
   21,378.03x = 514,333,671.91
5. Step 5: Solve for x
   x = 514,333,671.91/21,378.03
6. Step 6: Final answer
   x = 24,058.99