Finding the Fourth Proportional to 13,158.02, 19,742.30 and 5,365.02

Step by Step Solution

1. Step 1: Write the proportion equation
   13,158.02 : 19,742.30 = 5,365.02 : x
2. Step 2: Convert to fraction form
   13,158.02/19,742.30 = 5,365.02/x
3. Step 3: Cross multiply
   13,158.02x = 19,742.30 × 5,365.02
4. Step 4: Simplify right side
   13,158.02x = 105,917,834.35
5. Step 5: Solve for x
   x = 105,917,834.35/13,158.02
6. Step 6: Final answer
   x = 8,049.68