Finding the Fourth Proportional to 13,185.01, 19,777.61 and 5,393.82

Step by Step Solution

1. Step 1: Write the proportion equation
   13,185.01 : 19,777.61 = 5,393.82 : x
2. Step 2: Convert to fraction form
   13,185.01/19,777.61 = 5,393.82/x
3. Step 3: Cross multiply
   13,185.01x = 19,777.61 × 5,393.82
4. Step 4: Simplify right side
   13,185.01x = 106,676,868.37
5. Step 5: Solve for x
   x = 106,676,868.37/13,185.01
6. Step 6: Final answer
   x = 8,090.77