Finding the Fourth Proportional to 7,315.56, 10,094.74 and 4,128.57

Step by Step Solution

1. Step 1: Write the proportion equation
   7,315.56 : 10,094.74 = 4,128.57 : x
2. Step 2: Convert to fraction form
   7,315.56/10,094.74 = 4,128.57/x
3. Step 3: Cross multiply
   7,315.56x = 10,094.74 × 4,128.57
4. Step 4: Simplify right side
   7,315.56x = 41,676,840.72
5. Step 5: Solve for x
   x = 41,676,840.72/7,315.56
6. Step 6: Final answer
   x = 5,697.01