Finding the Fourth Proportional to 13,820.18, 20,726.46 and 3,822.53

Step by Step Solution

1. Step 1: Write the proportion equation
   13,820.18 : 20,726.46 = 3,822.53 : x
2. Step 2: Convert to fraction form
   13,820.18/20,726.46 = 3,822.53/x
3. Step 3: Cross multiply
   13,820.18x = 20,726.46 × 3,822.53
4. Step 4: Simplify right side
   13,820.18x = 79,227,411.51
5. Step 5: Solve for x
   x = 79,227,411.51/13,820.18
6. Step 6: Final answer
   x = 5,732.74