Finding the Fourth Proportional to 6,128.63, 9,192.74 and 3,356.61

Step by Step Solution

1. Step 1: Write the proportion equation
   6,128.63 : 9,192.74 = 3,356.61 : x
2. Step 2: Convert to fraction form
   6,128.63/9,192.74 = 3,356.61/x
3. Step 3: Cross multiply
   6,128.63x = 9,192.74 × 3,356.61
4. Step 4: Simplify right side
   6,128.63x = 30,856,443.01
5. Step 5: Solve for x
   x = 30,856,443.01/6,128.63
6. Step 6: Final answer
   x = 5,034.80