Finding the Fourth Proportional to 13,296.42, 19,948.82 and 3,936.42

Step by Step Solution

1. Step 1: Write the proportion equation
   13,296.42 : 19,948.82 = 3,936.42 : x
2. Step 2: Convert to fraction form
   13,296.42/19,948.82 = 3,936.42/x
3. Step 3: Cross multiply
   13,296.42x = 19,948.82 × 3,936.42
4. Step 4: Simplify right side
   13,296.42x = 78,526,914.34
5. Step 5: Solve for x
   x = 78,526,914.34/13,296.42
6. Step 6: Final answer
   x = 5,905.87