Finding the Fourth Proportional to 9,261.25, 12,780.53 and 5,069.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,261.25 : 12,780.53 = 5,069.50 : x
2. Step 2: Convert to fraction form
   9,261.25/12,780.53 = 5,069.50/x
3. Step 3: Cross multiply
   9,261.25x = 12,780.53 × 5,069.50
4. Step 4: Simplify right side
   9,261.25x = 64,790,871.49
5. Step 5: Solve for x
   x = 64,790,871.49/9,261.25
6. Step 6: Final answer
   x = 6,995.91