Finding the Fourth Proportional to 19,405.47, 29,084.69 and 13,774.29

Step by Step Solution

1. Step 1: Write the proportion equation
   19,405.47 : 29,084.69 = 13,774.29 : x
2. Step 2: Convert to fraction form
   19,405.47/29,084.69 = 13,774.29/x
3. Step 3: Cross multiply
   19,405.47x = 29,084.69 × 13,774.29
4. Step 4: Simplify right side
   19,405.47x = 400,620,740.33
5. Step 5: Solve for x
   x = 400,620,740.33/19,405.47
6. Step 6: Final answer
   x = 20,644.73