Finding the Fourth Proportional to 9,266.76, 12,788.10 and 5,730.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,266.76 : 12,788.10 = 5,730.12 : x
2. Step 2: Convert to fraction form
   9,266.76/12,788.10 = 5,730.12/x
3. Step 3: Cross multiply
   9,266.76x = 12,788.10 × 5,730.12
4. Step 4: Simplify right side
   9,266.76x = 73,277,347.57
5. Step 5: Solve for x
   x = 73,277,347.57/9,266.76
6. Step 6: Final answer
   x = 7,907.55