Finding the Fourth Proportional to 10,978.30, 15,150.08 and 5,942.56

Step by Step Solution

1. Step 1: Write the proportion equation
   10,978.30 : 15,150.08 = 5,942.56 : x
2. Step 2: Convert to fraction form
   10,978.30/15,150.08 = 5,942.56/x
3. Step 3: Cross multiply
   10,978.30x = 15,150.08 × 5,942.56
4. Step 4: Simplify right side
   10,978.30x = 90,030,259.40
5. Step 5: Solve for x
   x = 90,030,259.40/10,978.30
6. Step 6: Final answer
   x = 8,200.75