Finding the Fourth Proportional to 13,080.69, 18,051.89 and 7,415.73

Step by Step Solution

1. Step 1: Write the proportion equation
   13,080.69 : 18,051.89 = 7,415.73 : x
2. Step 2: Convert to fraction form
   13,080.69/18,051.89 = 7,415.73/x
3. Step 3: Cross multiply
   13,080.69x = 18,051.89 × 7,415.73
4. Step 4: Simplify right side
   13,080.69x = 133,867,905.15
5. Step 5: Solve for x
   x = 133,867,905.15/13,080.69
6. Step 6: Final answer
   x = 10,234.01