Finding the Fourth Proportional to 4,978.76, 7,470.86 and 4,195.08

Step by Step Solution

1. Step 1: Write the proportion equation
   4,978.76 : 7,470.86 = 4,195.08 : x
2. Step 2: Convert to fraction form
   4,978.76/7,470.86 = 4,195.08/x
3. Step 3: Cross multiply
   4,978.76x = 7,470.86 × 4,195.08
4. Step 4: Simplify right side
   4,978.76x = 31,340,834.39
5. Step 5: Solve for x
   x = 31,340,834.39/4,978.76
6. Step 6: Final answer
   x = 6,294.91