Finding the Fourth Proportional to 9,427.62, 12,980.30 and 7,182.30

Step by Step Solution

1. Step 1: Write the proportion equation
   9,427.62 : 12,980.30 = 7,182.30 : x
2. Step 2: Convert to fraction form
   9,427.62/12,980.30 = 7,182.30/x
3. Step 3: Cross multiply
   9,427.62x = 12,980.30 × 7,182.30
4. Step 4: Simplify right side
   9,427.62x = 93,228,408.69
5. Step 5: Solve for x
   x = 93,228,408.69/9,427.62
6. Step 6: Final answer
   x = 9,888.86