Finding the Fourth Proportional to 12,086.74, 18,108.66 and 5,051.25

Step by Step Solution

1. Step 1: Write the proportion equation
   12,086.74 : 18,108.66 = 5,051.25 : x
2. Step 2: Convert to fraction form
   12,086.74/18,108.66 = 5,051.25/x
3. Step 3: Cross multiply
   12,086.74x = 18,108.66 × 5,051.25
4. Step 4: Simplify right side
   12,086.74x = 91,471,387.77
5. Step 5: Solve for x
   x = 91,471,387.77/12,086.74
6. Step 6: Final answer
   x = 7,567.91