Finding the Fourth Proportional to 11,100.67, 16,650.62 and 2,780.76

Step by Step Solution

1. Step 1: Write the proportion equation
   11,100.67 : 16,650.62 = 2,780.76 : x
2. Step 2: Convert to fraction form
   11,100.67/16,650.62 = 2,780.76/x
3. Step 3: Cross multiply
   11,100.67x = 16,650.62 × 2,780.76
4. Step 4: Simplify right side
   11,100.67x = 46,301,287.87
5. Step 5: Solve for x
   x = 46,301,287.87/11,100.67
6. Step 6: Final answer
   x = 4,171.04