Finding the Fourth Proportional to 13,100.82, 18,079.26 and 7,132.56

Step by Step Solution

1. Step 1: Write the proportion equation
   13,100.82 : 18,079.26 = 7,132.56 : x
2. Step 2: Convert to fraction form
   13,100.82/18,079.26 = 7,132.56/x
3. Step 3: Cross multiply
   13,100.82x = 18,079.26 × 7,132.56
4. Step 4: Simplify right side
   13,100.82x = 128,951,406.71
5. Step 5: Solve for x
   x = 128,951,406.71/13,100.82
6. Step 6: Final answer
   x = 9,843.00