Finding the Fourth Proportional to 9,315.13, 13,972.73 and 8,847.96

Step by Step Solution

1. Step 1: Write the proportion equation
   9,315.13 : 13,972.73 = 8,847.96 : x
2. Step 2: Convert to fraction form
   9,315.13/13,972.73 = 8,847.96/x
3. Step 3: Cross multiply
   9,315.13x = 13,972.73 × 8,847.96
4. Step 4: Simplify right side
   9,315.13x = 123,630,111.89
5. Step 5: Solve for x
   x = 123,630,111.89/9,315.13
6. Step 6: Final answer
   x = 13,271.98