Finding the Fourth Proportional to 13,319.82, 18,381.89 and 7,654.48

Step by Step Solution

1. Step 1: Write the proportion equation
   13,319.82 : 18,381.89 = 7,654.48 : x
2. Step 2: Convert to fraction form
   13,319.82/18,381.89 = 7,654.48/x
3. Step 3: Cross multiply
   13,319.82x = 18,381.89 × 7,654.48
4. Step 4: Simplify right side
   13,319.82x = 140,703,782.55
5. Step 5: Solve for x
   x = 140,703,782.55/13,319.82
6. Step 6: Final answer
   x = 10,563.49