Finding the Fourth Proportional to 9,337.28, 12,880.01 and 5,978.88

Step by Step Solution

1. Step 1: Write the proportion equation
   9,337.28 : 12,880.01 = 5,978.88 : x
2. Step 2: Convert to fraction form
   9,337.28/12,880.01 = 5,978.88/x
3. Step 3: Cross multiply
   9,337.28x = 12,880.01 × 5,978.88
4. Step 4: Simplify right side
   9,337.28x = 77,008,034.19
5. Step 5: Solve for x
   x = 77,008,034.19/9,337.28
6. Step 6: Final answer
   x = 8,247.37