Finding the Fourth Proportional to 4,978.86, 7,461.30 and 3,934.26

Step by Step Solution

1. Step 1: Write the proportion equation
   4,978.86 : 7,461.30 = 3,934.26 : x
2. Step 2: Convert to fraction form
   4,978.86/7,461.30 = 3,934.26/x
3. Step 3: Cross multiply
   4,978.86x = 7,461.30 × 3,934.26
4. Step 4: Simplify right side
   4,978.86x = 29,354,674.47
5. Step 5: Solve for x
   x = 29,354,674.47/4,978.86
6. Step 6: Final answer
   x = 5,895.87