Finding the Fourth Proportional to 9,933.61, 13,708.70 and 5,457.46

Step by Step Solution

1. Step 1: Write the proportion equation
   9,933.61 : 13,708.70 = 5,457.46 : x
2. Step 2: Convert to fraction form
   9,933.61/13,708.70 = 5,457.46/x
3. Step 3: Cross multiply
   9,933.61x = 13,708.70 × 5,457.46
4. Step 4: Simplify right side
   9,933.61x = 74,814,620.34
5. Step 5: Solve for x
   x = 74,814,620.34/9,933.61
6. Step 6: Final answer
   x = 7,531.47