Finding the Fourth Proportional to 13,065.76, 18,030.78 and 7,097.42

Step by Step Solution

1. Step 1: Write the proportion equation
   13,065.76 : 18,030.78 = 7,097.42 : x
2. Step 2: Convert to fraction form
   13,065.76/18,030.78 = 7,097.42/x
3. Step 3: Cross multiply
   13,065.76x = 18,030.78 × 7,097.42
4. Step 4: Simplify right side
   13,065.76x = 127,972,018.59
5. Step 5: Solve for x
   x = 127,972,018.59/13,065.76
6. Step 6: Final answer
   x = 9,794.46