Finding the Fourth Proportional to 13,053.34, 18,013.72 and 7,388.10

Step by Step Solution

1. Step 1: Write the proportion equation
   13,053.34 : 18,013.72 = 7,388.10 : x
2. Step 2: Convert to fraction form
   13,053.34/18,013.72 = 7,388.10/x
3. Step 3: Cross multiply
   13,053.34x = 18,013.72 × 7,388.10
4. Step 4: Simplify right side
   13,053.34x = 133,087,164.73
5. Step 5: Solve for x
   x = 133,087,164.73/13,053.34
6. Step 6: Final answer
   x = 10,195.64