Finding the Fourth Proportional to 8,310.25, 12,522.71 and 7,530.22

Step by Step Solution

1. Step 1: Write the proportion equation
   8,310.25 : 12,522.71 = 7,530.22 : x
2. Step 2: Convert to fraction form
   8,310.25/12,522.71 = 7,530.22/x
3. Step 3: Cross multiply
   8,310.25x = 12,522.71 × 7,530.22
4. Step 4: Simplify right side
   8,310.25x = 94,298,761.30
5. Step 5: Solve for x
   x = 94,298,761.30/8,310.25
6. Step 6: Final answer
   x = 11,347.28