Finding the Fourth Proportional to 13,327.16, 18,392.32 and 7,663.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,327.16 : 18,392.32 = 7,663.72 : x
2. Step 2: Convert to fraction form
   13,327.16/18,392.32 = 7,663.72/x
3. Step 3: Cross multiply
   13,327.16x = 18,392.32 × 7,663.72
4. Step 4: Simplify right side
   13,327.16x = 140,953,590.63
5. Step 5: Solve for x
   x = 140,953,590.63/13,327.16
6. Step 6: Final answer
   x = 10,576.42