Finding the Fourth Proportional to 13,126.72, 19,690.09 and 3,266.00

Step by Step Solution

1. Step 1: Write the proportion equation
   13,126.72 : 19,690.09 = 3,266.00 : x
2. Step 2: Convert to fraction form
   13,126.72/19,690.09 = 3,266.00/x
3. Step 3: Cross multiply
   13,126.72x = 19,690.09 × 3,266.00
4. Step 4: Simplify right side
   13,126.72x = 64,307,727.32
5. Step 5: Solve for x
   x = 64,307,727.32/13,126.72
6. Step 6: Final answer
   x = 4,899.00