Finding the Fourth Proportional to 8,917.35, 12,277.94 and 7,570.17

Step by Step Solution

1. Step 1: Write the proportion equation
   8,917.35 : 12,277.94 = 7,570.17 : x
2. Step 2: Convert to fraction form
   8,917.35/12,277.94 = 7,570.17/x
3. Step 3: Cross multiply
   8,917.35x = 12,277.94 × 7,570.17
4. Step 4: Simplify right side
   8,917.35x = 92,946,019.52
5. Step 5: Solve for x
   x = 92,946,019.52/8,917.35
6. Step 6: Final answer
   x = 10,423.05