Finding the Fourth Proportional to 13,288.32, 19,926.27 and 7,743.06

Step by Step Solution

1. Step 1: Write the proportion equation
   13,288.32 : 19,926.27 = 7,743.06 : x
2. Step 2: Convert to fraction form
   13,288.32/19,926.27 = 7,743.06/x
3. Step 3: Cross multiply
   13,288.32x = 19,926.27 × 7,743.06
4. Step 4: Simplify right side
   13,288.32x = 154,290,304.19
5. Step 5: Solve for x
   x = 154,290,304.19/13,288.32
6. Step 6: Final answer
   x = 11,610.97