Finding the Fourth Proportional to 13,168.04, 18,171.69 and 7,199.57

Step by Step Solution

1. Step 1: Write the proportion equation
   13,168.04 : 18,171.69 = 7,199.57 : x
2. Step 2: Convert to fraction form
   13,168.04/18,171.69 = 7,199.57/x
3. Step 3: Cross multiply
   13,168.04x = 18,171.69 × 7,199.57
4. Step 4: Simplify right side
   13,168.04x = 130,828,354.17
5. Step 5: Solve for x
   x = 130,828,354.17/13,168.04
6. Step 6: Final answer
   x = 9,935.29