Finding the Fourth Proportional to 8,128.89, 11,217.89 and 4,592.03

Step by Step Solution

1. Step 1: Write the proportion equation
   8,128.89 : 11,217.89 = 4,592.03 : x
2. Step 2: Convert to fraction form
   8,128.89/11,217.89 = 4,592.03/x
3. Step 3: Cross multiply
   8,128.89x = 11,217.89 × 4,592.03
4. Step 4: Simplify right side
   8,128.89x = 51,512,842.81
5. Step 5: Solve for x
   x = 51,512,842.81/8,128.89
6. Step 6: Final answer
   x = 6,337.01