Finding the Fourth Proportional to 12,996.63, 19,486.76 and 5,496.30

Step by Step Solution

1. Step 1: Write the proportion equation
   12,996.63 : 19,486.76 = 5,496.30 : x
2. Step 2: Convert to fraction form
   12,996.63/19,486.76 = 5,496.30/x
3. Step 3: Cross multiply
   12,996.63x = 19,486.76 × 5,496.30
4. Step 4: Simplify right side
   12,996.63x = 107,105,051.51
5. Step 5: Solve for x
   x = 107,105,051.51/12,996.63
6. Step 6: Final answer
   x = 8,240.99