Finding the Fourth Proportional to 13,066.20, 18,031.32 and 7,097.88

Step by Step Solution

1. Step 1: Write the proportion equation
   13,066.20 : 18,031.32 = 7,097.88 : x
2. Step 2: Convert to fraction form
   13,066.20/18,031.32 = 7,097.88/x
3. Step 3: Cross multiply
   13,066.20x = 18,031.32 × 7,097.88
4. Step 4: Simplify right side
   13,066.20x = 127,984,145.60
5. Step 5: Solve for x
   x = 127,984,145.60/13,066.20
6. Step 6: Final answer
   x = 9,795.05