Finding the Fourth Proportional to 11,980.72, 16,533.50 and 6,603.35

Step by Step Solution

1. Step 1: Write the proportion equation
   11,980.72 : 16,533.50 = 6,603.35 : x
2. Step 2: Convert to fraction form
   11,980.72/16,533.50 = 6,603.35/x
3. Step 3: Cross multiply
   11,980.72x = 16,533.50 × 6,603.35
4. Step 4: Simplify right side
   11,980.72x = 109,176,404.56
5. Step 5: Solve for x
   x = 109,176,404.56/11,980.72
6. Step 6: Final answer
   x = 9,112.67