Finding the Fourth Proportional to 13,081.37, 18,051.93 and 7,415.96

Step by Step Solution

1. Step 1: Write the proportion equation
   13,081.37 : 18,051.93 = 7,415.96 : x
2. Step 2: Convert to fraction form
   13,081.37/18,051.93 = 7,415.96/x
3. Step 3: Cross multiply
   13,081.37x = 18,051.93 × 7,415.96
4. Step 4: Simplify right side
   13,081.37x = 133,872,300.54
5. Step 5: Solve for x
   x = 133,872,300.54/13,081.37
6. Step 6: Final answer
   x = 10,233.82