Finding the Fourth Proportional to 8,127.51, 12,187.37 and 5,164.32

Step by Step Solution

1. Step 1: Write the proportion equation
   8,127.51 : 12,187.37 = 5,164.32 : x
2. Step 2: Convert to fraction form
   8,127.51/12,187.37 = 5,164.32/x
3. Step 3: Cross multiply
   8,127.51x = 12,187.37 × 5,164.32
4. Step 4: Simplify right side
   8,127.51x = 62,939,452.82
5. Step 5: Solve for x
   x = 62,939,452.82/8,127.51
6. Step 6: Final answer
   x = 7,744.00