Finding the Fourth Proportional to 10,128.54, 13,978.71 and 5,937.18

Step by Step Solution

1. Step 1: Write the proportion equation
   10,128.54 : 13,978.71 = 5,937.18 : x
2. Step 2: Convert to fraction form
   10,128.54/13,978.71 = 5,937.18/x
3. Step 3: Cross multiply
   10,128.54x = 13,978.71 × 5,937.18
4. Step 4: Simplify right side
   10,128.54x = 82,994,117.44
5. Step 5: Solve for x
   x = 82,994,117.44/10,128.54
6. Step 6: Final answer
   x = 8,194.08