Finding the Fourth Proportional to 13,091.56, 18,065.72 and 7,426.83

Step by Step Solution

1. Step 1: Write the proportion equation
   13,091.56 : 18,065.72 = 7,426.83 : x
2. Step 2: Convert to fraction form
   13,091.56/18,065.72 = 7,426.83/x
3. Step 3: Cross multiply
   13,091.56x = 18,065.72 × 7,426.83
4. Step 4: Simplify right side
   13,091.56x = 134,171,031.27
5. Step 5: Solve for x
   x = 134,171,031.27/13,091.56
6. Step 6: Final answer
   x = 10,248.67