Finding the Fourth Proportional to 13,101.41, 18,080.06 and 7,133.12

Step by Step Solution

1. Step 1: Write the proportion equation
   13,101.41 : 18,080.06 = 7,133.12 : x
2. Step 2: Convert to fraction form
   13,101.41/18,080.06 = 7,133.12/x
3. Step 3: Cross multiply
   13,101.41x = 18,080.06 × 7,133.12
4. Step 4: Simplify right side
   13,101.41x = 128,967,237.59
5. Step 5: Solve for x
   x = 128,967,237.59/13,101.41
6. Step 6: Final answer
   x = 9,843.77