Finding the Fourth Proportional to 8,097.60, 10,897.20 and 8,097.60

Step by Step Solution

1. Step 1: Write the proportion equation
   8,097.60 : 10,897.20 = 8,097.60 : x
2. Step 2: Convert to fraction form
   8,097.60/10,897.20 = 8,097.60/x
3. Step 3: Cross multiply
   8,097.60x = 10,897.20 × 8,097.60
4. Step 4: Simplify right side
   8,097.60x = 88,241,166.72
5. Step 5: Solve for x
   x = 88,241,166.72/8,097.60
6. Step 6: Final answer
   x = 10,897.20