Finding the Fourth Proportional to 19,426.06, 26,785.03 and 13,296.72

Step by Step Solution

1. Step 1: Write the proportion equation
   19,426.06 : 26,785.03 = 13,296.72 : x
2. Step 2: Convert to fraction form
   19,426.06/26,785.03 = 13,296.72/x
3. Step 3: Cross multiply
   19,426.06x = 26,785.03 × 13,296.72
4. Step 4: Simplify right side
   19,426.06x = 356,153,044.10
5. Step 5: Solve for x
   x = 356,153,044.10/19,426.06
6. Step 6: Final answer
   x = 18,333.78