Finding the Fourth Proportional to 10,978.56, 16,462.80 and 4,735.58

Step by Step Solution

1. Step 1: Write the proportion equation
   10,978.56 : 16,462.80 = 4,735.58 : x
2. Step 2: Convert to fraction form
   10,978.56/16,462.80 = 4,735.58/x
3. Step 3: Cross multiply
   10,978.56x = 16,462.80 × 4,735.58
4. Step 4: Simplify right side
   10,978.56x = 77,960,906.42
5. Step 5: Solve for x
   x = 77,960,906.42/10,978.56
6. Step 6: Final answer
   x = 7,101.20