Finding the Fourth Proportional to 5,553.98, 7,661.61 and 3,761.51

Step by Step Solution

1. Step 1: Write the proportion equation
   5,553.98 : 7,661.61 = 3,761.51 : x
2. Step 2: Convert to fraction form
   5,553.98/7,661.61 = 3,761.51/x
3. Step 3: Cross multiply
   5,553.98x = 7,661.61 × 3,761.51
4. Step 4: Simplify right side
   5,553.98x = 28,819,222.63
5. Step 5: Solve for x
   x = 28,819,222.63/5,553.98
6. Step 6: Final answer
   x = 5,188.93