Finding the Fourth Proportional to 13,353.04, 18,426.45 and 7,384.31

Step by Step Solution

1. Step 1: Write the proportion equation
   13,353.04 : 18,426.45 = 7,384.31 : x
2. Step 2: Convert to fraction form
   13,353.04/18,426.45 = 7,384.31/x
3. Step 3: Cross multiply
   13,353.04x = 18,426.45 × 7,384.31
4. Step 4: Simplify right side
   13,353.04x = 136,066,619.00
5. Step 5: Solve for x
   x = 136,066,619.00/13,353.04
6. Step 6: Final answer
   x = 10,189.94