Finding the Fourth Proportional to 8,978.67, 13,470.18 and 3,055.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,978.67 : 13,470.18 = 3,055.50 : x
2. Step 2: Convert to fraction form
   8,978.67/13,470.18 = 3,055.50/x
3. Step 3: Cross multiply
   8,978.67x = 13,470.18 × 3,055.50
4. Step 4: Simplify right side
   8,978.67x = 41,158,134.99
5. Step 5: Solve for x
   x = 41,158,134.99/8,978.67
6. Step 6: Final answer
   x = 4,583.99