Finding the Fourth Proportional to 9,294.30, 12,820.30 and 5,514.79

Step by Step Solution

1. Step 1: Write the proportion equation
   9,294.30 : 12,820.30 = 5,514.79 : x
2. Step 2: Convert to fraction form
   9,294.30/12,820.30 = 5,514.79/x
3. Step 3: Cross multiply
   9,294.30x = 12,820.30 × 5,514.79
4. Step 4: Simplify right side
   9,294.30x = 70,701,262.24
5. Step 5: Solve for x
   x = 70,701,262.24/9,294.30
6. Step 6: Final answer
   x = 7,606.95