Finding the Fourth Proportional to 8,895.63, 12,261.83 and 7,004.21

Step by Step Solution

1. Step 1: Write the proportion equation
   8,895.63 : 12,261.83 = 7,004.21 : x
2. Step 2: Convert to fraction form
   8,895.63/12,261.83 = 7,004.21/x
3. Step 3: Cross multiply
   8,895.63x = 12,261.83 × 7,004.21
4. Step 4: Simplify right side
   8,895.63x = 85,884,432.30
5. Step 5: Solve for x
   x = 85,884,432.30/8,895.63
6. Step 6: Final answer
   x = 9,654.68