Finding the Fourth Proportional to 13,005.37, 19,499.85 and 7,166.08

Step by Step Solution

1. Step 1: Write the proportion equation
   13,005.37 : 19,499.85 = 7,166.08 : x
2. Step 2: Convert to fraction form
   13,005.37/19,499.85 = 7,166.08/x
3. Step 3: Cross multiply
   13,005.37x = 19,499.85 × 7,166.08
4. Step 4: Simplify right side
   13,005.37x = 139,737,485.09
5. Step 5: Solve for x
   x = 139,737,485.09/13,005.37
6. Step 6: Final answer
   x = 10,744.60