Finding the Fourth Proportional to 13,101.50, 18,080.24 and 7,133.34

Step by Step Solution

1. Step 1: Write the proportion equation
   13,101.50 : 18,080.24 = 7,133.34 : x
2. Step 2: Convert to fraction form
   13,101.50/18,080.24 = 7,133.34/x
3. Step 3: Cross multiply
   13,101.50x = 18,080.24 × 7,133.34
4. Step 4: Simplify right side
   13,101.50x = 128,972,499.20
5. Step 5: Solve for x
   x = 128,972,499.20/13,101.50
6. Step 6: Final answer
   x = 9,844.10