Finding the Fourth Proportional to 3,780.69, 5,645.55 and 3,088.73

Step by Step Solution

1. Step 1: Write the proportion equation
   3,780.69 : 5,645.55 = 3,088.73 : x
2. Step 2: Convert to fraction form
   3,780.69/5,645.55 = 3,088.73/x
3. Step 3: Cross multiply
   3,780.69x = 5,645.55 × 3,088.73
4. Step 4: Simplify right side
   3,780.69x = 17,437,551.42
5. Step 5: Solve for x
   x = 17,437,551.42/3,780.69
6. Step 6: Final answer
   x = 4,612.27