Finding the Fourth Proportional to 12,194.51, 18,288.15 and 5,174.43

Step by Step Solution

1. Step 1: Write the proportion equation
   12,194.51 : 18,288.15 = 5,174.43 : x
2. Step 2: Convert to fraction form
   12,194.51/18,288.15 = 5,174.43/x
3. Step 3: Cross multiply
   12,194.51x = 18,288.15 × 5,174.43
4. Step 4: Simplify right side
   12,194.51x = 94,630,752.00
5. Step 5: Solve for x
   x = 94,630,752.00/12,194.51
6. Step 6: Final answer
   x = 7,760.11