Finding the Fourth Proportional to 9,933.15, 13,707.72 and 5,457

Step by Step Solution

1. Step 1: Write the proportion equation
   9,933.15 : 13,707.72 = 5,457 : x
2. Step 2: Convert to fraction form
   9,933.15/13,707.72 = 5,457/x
3. Step 3: Cross multiply
   9,933.15x = 13,707.72 × 5,457
4. Step 4: Simplify right side
   9,933.15x = 74,803,028.04
5. Step 5: Solve for x
   x = 74,803,028.04/9,933.15
6. Step 6: Final answer
   x = 7,530.65