Finding the Fourth Proportional to 13,185.72, 19,782.63 and 5,395.14

Step by Step Solution

1. Step 1: Write the proportion equation
   13,185.72 : 19,782.63 = 5,395.14 : x
2. Step 2: Convert to fraction form
   13,185.72/19,782.63 = 5,395.14/x
3. Step 3: Cross multiply
   13,185.72x = 19,782.63 × 5,395.14
4. Step 4: Simplify right side
   13,185.72x = 106,730,058.42
5. Step 5: Solve for x
   x = 106,730,058.42/13,185.72
6. Step 6: Final answer
   x = 8,094.37