Finding the Fourth Proportional to 11,277.77, 16,918.72 and 3,780.59

Step by Step Solution

1. Step 1: Write the proportion equation
   11,277.77 : 16,918.72 = 3,780.59 : x
2. Step 2: Convert to fraction form
   11,277.77/16,918.72 = 3,780.59/x
3. Step 3: Cross multiply
   11,277.77x = 16,918.72 × 3,780.59
4. Step 4: Simplify right side
   11,277.77x = 63,962,790.67
5. Step 5: Solve for x
   x = 63,962,790.67/11,277.77
6. Step 6: Final answer
   x = 5,671.58