Finding the Fourth Proportional to 13,164.22, 19,743.42 and 3,802.21

Step by Step Solution

1. Step 1: Write the proportion equation
   13,164.22 : 19,743.42 = 3,802.21 : x
2. Step 2: Convert to fraction form
   13,164.22/19,743.42 = 3,802.21/x
3. Step 3: Cross multiply
   13,164.22x = 19,743.42 × 3,802.21
4. Step 4: Simplify right side
   13,164.22x = 75,068,628.96
5. Step 5: Solve for x
   x = 75,068,628.96/13,164.22
6. Step 6: Final answer
   x = 5,702.47