Finding the Fourth Proportional to 7,961.76, 10,978.38 and 5,444.28

Step by Step Solution

1. Step 1: Write the proportion equation
   7,961.76 : 10,978.38 = 5,444.28 : x
2. Step 2: Convert to fraction form
   7,961.76/10,978.38 = 5,444.28/x
3. Step 3: Cross multiply
   7,961.76x = 10,978.38 × 5,444.28
4. Step 4: Simplify right side
   7,961.76x = 59,769,374.67
5. Step 5: Solve for x
   x = 59,769,374.67/7,961.76
6. Step 6: Final answer
   x = 7,507.06