Finding the Fourth Proportional to 11,780.18, 16,249.88 and 7,356.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,780.18 : 16,249.88 = 7,356.50 : x
2. Step 2: Convert to fraction form
   11,780.18/16,249.88 = 7,356.50/x
3. Step 3: Cross multiply
   11,780.18x = 16,249.88 × 7,356.50
4. Step 4: Simplify right side
   11,780.18x = 119,542,242.22
5. Step 5: Solve for x
   x = 119,542,242.22/11,780.18
6. Step 6: Final answer
   x = 10,147.74