Finding the Fourth Proportional to 9,091.74, 12,546.18 and 5,555.28

Step by Step Solution

1. Step 1: Write the proportion equation
   9,091.74 : 12,546.18 = 5,555.28 : x
2. Step 2: Convert to fraction form
   9,091.74/12,546.18 = 5,555.28/x
3. Step 3: Cross multiply
   9,091.74x = 12,546.18 × 5,555.28
4. Step 4: Simplify right side
   9,091.74x = 69,697,542.83
5. Step 5: Solve for x
   x = 69,697,542.83/9,091.74
6. Step 6: Final answer
   x = 7,666.03