Finding the Fourth Proportional to 10,978.33, 16,455.70 and 4,741.28

Step by Step Solution

1. Step 1: Write the proportion equation
   10,978.33 : 16,455.70 = 4,741.28 : x
2. Step 2: Convert to fraction form
   10,978.33/16,455.70 = 4,741.28/x
3. Step 3: Cross multiply
   10,978.33x = 16,455.70 × 4,741.28
4. Step 4: Simplify right side
   10,978.33x = 78,021,118.82
5. Step 5: Solve for x
   x = 78,021,118.82/10,978.33
6. Step 6: Final answer
   x = 7,106.83