Finding the Fourth Proportional to 7,401.51, 11,087.69 and 5,554.71

Step by Step Solution

1. Step 1: Write the proportion equation
   7,401.51 : 11,087.69 = 5,554.71 : x
2. Step 2: Convert to fraction form
   7,401.51/11,087.69 = 5,554.71/x
3. Step 3: Cross multiply
   7,401.51x = 11,087.69 × 5,554.71
4. Step 4: Simplify right side
   7,401.51x = 61,588,874.75
5. Step 5: Solve for x
   x = 61,588,874.75/7,401.51
6. Step 6: Final answer
   x = 8,321.12