Finding the Fourth Proportional to 12,267.86, 18,401.72 and 7,338.88

Step by Step Solution

1. Step 1: Write the proportion equation
   12,267.86 : 18,401.72 = 7,338.88 : x
2. Step 2: Convert to fraction form
   12,267.86/18,401.72 = 7,338.88/x
3. Step 3: Cross multiply
   12,267.86x = 18,401.72 × 7,338.88
4. Step 4: Simplify right side
   12,267.86x = 135,047,886.17
5. Step 5: Solve for x
   x = 135,047,886.17/12,267.86
6. Step 6: Final answer
   x = 11,008.27