Finding the Fourth Proportional to 12,687.82, 19,036.23 and 5,667.19

Step by Step Solution

1. Step 1: Write the proportion equation
   12,687.82 : 19,036.23 = 5,667.19 : x
2. Step 2: Convert to fraction form
   12,687.82/19,036.23 = 5,667.19/x
3. Step 3: Cross multiply
   12,687.82x = 19,036.23 × 5,667.19
4. Step 4: Simplify right side
   12,687.82x = 107,881,932.29
5. Step 5: Solve for x
   x = 107,881,932.29/12,687.82
6. Step 6: Final answer
   x = 8,502.79