Finding the Fourth Proportional to 9,622.92, 13,287.15 and 7,381.25

Step by Step Solution

1. Step 1: Write the proportion equation
   9,622.92 : 13,287.15 = 7,381.25 : x
2. Step 2: Convert to fraction form
   9,622.92/13,287.15 = 7,381.25/x
3. Step 3: Cross multiply
   9,622.92x = 13,287.15 × 7,381.25
4. Step 4: Simplify right side
   9,622.92x = 98,075,709.50
5. Step 5: Solve for x
   x = 98,075,709.50/9,622.92
6. Step 6: Final answer
   x = 10,191.89