Finding the Fourth Proportional to 12,713.82, 19,043.10 and 7,164.24

Step by Step Solution

1. Step 1: Write the proportion equation
   12,713.82 : 19,043.10 = 7,164.24 : x
2. Step 2: Convert to fraction form
   12,713.82/19,043.10 = 7,164.24/x
3. Step 3: Cross multiply
   12,713.82x = 19,043.10 × 7,164.24
4. Step 4: Simplify right side
   12,713.82x = 136,429,338.74
5. Step 5: Solve for x
   x = 136,429,338.74/12,713.82
6. Step 6: Final answer
   x = 10,730.79