Finding the Fourth Proportional to 7,528.46, 11,288.59 and 5,978.42

Step by Step Solution

1. Step 1: Write the proportion equation
   7,528.46 : 11,288.59 = 5,978.42 : x
2. Step 2: Convert to fraction form
   7,528.46/11,288.59 = 5,978.42/x
3. Step 3: Cross multiply
   7,528.46x = 11,288.59 × 5,978.42
4. Step 4: Simplify right side
   7,528.46x = 67,487,932.23
5. Step 5: Solve for x
   x = 67,487,932.23/7,528.46
6. Step 6: Final answer
   x = 8,964.37