Finding the Fourth Proportional to 12,995.82, 19,490.75 and 3,636.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,995.82 : 19,490.75 = 3,636.50 : x
2. Step 2: Convert to fraction form
   12,995.82/19,490.75 = 3,636.50/x
3. Step 3: Cross multiply
   12,995.82x = 19,490.75 × 3,636.50
4. Step 4: Simplify right side
   12,995.82x = 70,877,996.74
5. Step 5: Solve for x
   x = 70,877,996.74/12,995.82
6. Step 6: Final answer
   x = 5,453.91