Finding the Fourth Proportional to 8,978.24, 13,470.03 and 4,598.78

Step by Step Solution

1. Step 1: Write the proportion equation
   8,978.24 : 13,470.03 = 4,598.78 : x
2. Step 2: Convert to fraction form
   8,978.24/13,470.03 = 4,598.78/x
3. Step 3: Cross multiply
   8,978.24x = 13,470.03 × 4,598.78
4. Step 4: Simplify right side
   8,978.24x = 61,945,637.21
5. Step 5: Solve for x
   x = 61,945,637.21/8,978.24
6. Step 6: Final answer
   x = 6,899.53