Finding the Fourth Proportional to 12,185.93, 18,275.18 and 5,165.81

Step by Step Solution

1. Step 1: Write the proportion equation
   12,185.93 : 18,275.18 = 5,165.81 : x
2. Step 2: Convert to fraction form
   12,185.93/18,275.18 = 5,165.81/x
3. Step 3: Cross multiply
   12,185.93x = 18,275.18 × 5,165.81
4. Step 4: Simplify right side
   12,185.93x = 94,406,127.45
5. Step 5: Solve for x
   x = 94,406,127.45/12,185.93
6. Step 6: Final answer
   x = 7,747.14