Finding the Fourth Proportional to 9,933.68, 13,707.81 and 5,457.62

Step by Step Solution

1. Step 1: Write the proportion equation
   9,933.68 : 13,707.81 = 5,457.62 : x
2. Step 2: Convert to fraction form
   9,933.68/13,707.81 = 5,457.62/x
3. Step 3: Cross multiply
   9,933.68x = 13,707.81 × 5,457.62
4. Step 4: Simplify right side
   9,933.68x = 74,812,052.28
5. Step 5: Solve for x
   x = 74,812,052.28/9,933.68
6. Step 6: Final answer
   x = 7,531.15