Finding the Fourth Proportional to 7,954.35, 10,978.20 and 5,723.61

Step by Step Solution

1. Step 1: Write the proportion equation
   7,954.35 : 10,978.20 = 5,723.61 : x
2. Step 2: Convert to fraction form
   7,954.35/10,978.20 = 5,723.61/x
3. Step 3: Cross multiply
   7,954.35x = 10,978.20 × 5,723.61
4. Step 4: Simplify right side
   7,954.35x = 62,834,935.30
5. Step 5: Solve for x
   x = 62,834,935.30/7,954.35
6. Step 6: Final answer
   x = 7,899.44