Finding the Fourth Proportional to 13,351.77, 18,426.80 and 7,383.89

Step by Step Solution

1. Step 1: Write the proportion equation
   13,351.77 : 18,426.80 = 7,383.89 : x
2. Step 2: Convert to fraction form
   13,351.77/18,426.80 = 7,383.89/x
3. Step 3: Cross multiply
   13,351.77x = 18,426.80 × 7,383.89
4. Step 4: Simplify right side
   13,351.77x = 136,061,464.25
5. Step 5: Solve for x
   x = 136,061,464.25/13,351.77
6. Step 6: Final answer
   x = 10,190.52