Finding the Fourth Proportional to 13,196.43, 19,777.72 and 5,395.95

Step by Step Solution

1. Step 1: Write the proportion equation
   13,196.43 : 19,777.72 = 5,395.95 : x
2. Step 2: Convert to fraction form
   13,196.43/19,777.72 = 5,395.95/x
3. Step 3: Cross multiply
   13,196.43x = 19,777.72 × 5,395.95
4. Step 4: Simplify right side
   13,196.43x = 106,719,588.23
5. Step 5: Solve for x
   x = 106,719,588.23/13,196.43
6. Step 6: Final answer
   x = 8,087.00