Finding the Fourth Proportional to 9,189.22, 13,776.12 and 7,624.84

Step by Step Solution

1. Step 1: Write the proportion equation
   9,189.22 : 13,776.12 = 7,624.84 : x
2. Step 2: Convert to fraction form
   9,189.22/13,776.12 = 7,624.84/x
3. Step 3: Cross multiply
   9,189.22x = 13,776.12 × 7,624.84
4. Step 4: Simplify right side
   9,189.22x = 105,040,710.82
5. Step 5: Solve for x
   x = 105,040,710.82/9,189.22
6. Step 6: Final answer
   x = 11,430.86