Finding the Fourth Proportional to 8,373.93, 12,542.67 and 3,978.06

Step by Step Solution

1. Step 1: Write the proportion equation
   8,373.93 : 12,542.67 = 3,978.06 : x
2. Step 2: Convert to fraction form
   8,373.93/12,542.67 = 3,978.06/x
3. Step 3: Cross multiply
   8,373.93x = 12,542.67 × 3,978.06
4. Step 4: Simplify right side
   8,373.93x = 49,895,493.82
5. Step 5: Solve for x
   x = 49,895,493.82/8,373.93
6. Step 6: Final answer
   x = 5,958.43