Finding the Fourth Proportional to 21,223.86, 29,310.15 and 17,484.09

Step by Step Solution

1. Step 1: Write the proportion equation
   21,223.86 : 29,310.15 = 17,484.09 : x
2. Step 2: Convert to fraction form
   21,223.86/29,310.15 = 17,484.09/x
3. Step 3: Cross multiply
   21,223.86x = 29,310.15 × 17,484.09
4. Step 4: Simplify right side
   21,223.86x = 512,461,300.51
5. Step 5: Solve for x
   x = 512,461,300.51/21,223.86
6. Step 6: Final answer
   x = 24,145.53