Finding the Fourth Proportional to 10,884.34, 16,331.61 and 7,557.70

Step by Step Solution

1. Step 1: Write the proportion equation
   10,884.34 : 16,331.61 = 7,557.70 : x
2. Step 2: Convert to fraction form
   10,884.34/16,331.61 = 7,557.70/x
3. Step 3: Cross multiply
   10,884.34x = 16,331.61 × 7,557.70
4. Step 4: Simplify right side
   10,884.34x = 123,429,408.90
5. Step 5: Solve for x
   x = 123,429,408.90/10,884.34
6. Step 6: Final answer
   x = 11,340.09