Finding the Fourth Proportional to 9,387.63, 12,952.50 and 5,609.25

Step by Step Solution

1. Step 1: Write the proportion equation
   9,387.63 : 12,952.50 = 5,609.25 : x
2. Step 2: Convert to fraction form
   9,387.63/12,952.50 = 5,609.25/x
3. Step 3: Cross multiply
   9,387.63x = 12,952.50 × 5,609.25
4. Step 4: Simplify right side
   9,387.63x = 72,653,810.63
5. Step 5: Solve for x
   x = 72,653,810.63/9,387.63
6. Step 6: Final answer
   x = 7,739.31