Finding the Fourth Proportional to 13,196.90, 19,796.64 and 3,836.99

Step by Step Solution

1. Step 1: Write the proportion equation
   13,196.90 : 19,796.64 = 3,836.99 : x
2. Step 2: Convert to fraction form
   13,196.90/19,796.64 = 3,836.99/x
3. Step 3: Cross multiply
   13,196.90x = 19,796.64 × 3,836.99
4. Step 4: Simplify right side
   13,196.90x = 75,959,391.55
5. Step 5: Solve for x
   x = 75,959,391.55/13,196.90
6. Step 6: Final answer
   x = 5,755.85