Finding the Fourth Proportional to 8,895.80, 12,271.56 and 5,538.08

Step by Step Solution

1. Step 1: Write the proportion equation
   8,895.80 : 12,271.56 = 5,538.08 : x
2. Step 2: Convert to fraction form
   8,895.80/12,271.56 = 5,538.08/x
3. Step 3: Cross multiply
   8,895.80x = 12,271.56 × 5,538.08
4. Step 4: Simplify right side
   8,895.80x = 67,960,881.00
5. Step 5: Solve for x
   x = 67,960,881.00/8,895.80
6. Step 6: Final answer
   x = 7,639.66