Finding the Fourth Proportional to 13,352.72, 18,426.56 and 7,384.25

Step by Step Solution

1. Step 1: Write the proportion equation
   13,352.72 : 18,426.56 = 7,384.25 : x
2. Step 2: Convert to fraction form
   13,352.72/18,426.56 = 7,384.25/x
3. Step 3: Cross multiply
   13,352.72x = 18,426.56 × 7,384.25
4. Step 4: Simplify right side
   13,352.72x = 136,066,334.83
5. Step 5: Solve for x
   x = 136,066,334.83/13,352.72
6. Step 6: Final answer
   x = 10,190.16