Finding the Fourth Proportional to 9,257.63, 12,775.52 and 5,065.88

Step by Step Solution

1. Step 1: Write the proportion equation
   9,257.63 : 12,775.52 = 5,065.88 : x
2. Step 2: Convert to fraction form
   9,257.63/12,775.52 = 5,065.88/x
3. Step 3: Cross multiply
   9,257.63x = 12,775.52 × 5,065.88
4. Step 4: Simplify right side
   9,257.63x = 64,719,200.04
5. Step 5: Solve for x
   x = 64,719,200.04/9,257.63
6. Step 6: Final answer
   x = 6,990.91