Finding the Fourth Proportional to 9,168.10, 12,848.30 and 9,168.10

Step by Step Solution

1. Step 1: Write the proportion equation
   9,168.10 : 12,848.30 = 9,168.10 : x
2. Step 2: Convert to fraction form
   9,168.10/12,848.30 = 9,168.10/x
3. Step 3: Cross multiply
   9,168.10x = 12,848.30 × 9,168.10
4. Step 4: Simplify right side
   9,168.10x = 117,794,499.23
5. Step 5: Solve for x
   x = 117,794,499.23/9,168.10
6. Step 6: Final answer
   x = 12,848.30