Finding the Fourth Proportional to 9,112.96, 12,575.96 and 5,133.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,112.96 : 12,575.96 = 5,133.72 : x
2. Step 2: Convert to fraction form
   9,112.96/12,575.96 = 5,133.72/x
3. Step 3: Cross multiply
   9,112.96x = 12,575.96 × 5,133.72
4. Step 4: Simplify right side
   9,112.96x = 64,561,457.37
5. Step 5: Solve for x
   x = 64,561,457.37/9,112.96
6. Step 6: Final answer
   x = 7,084.58