Finding the Fourth Proportional to 10,454.82, 15,686.31 and 4,607.31

Step by Step Solution

1. Step 1: Write the proportion equation
   10,454.82 : 15,686.31 = 4,607.31 : x
2. Step 2: Convert to fraction form
   10,454.82/15,686.31 = 4,607.31/x
3. Step 3: Cross multiply
   10,454.82x = 15,686.31 × 4,607.31
4. Step 4: Simplify right side
   10,454.82x = 72,271,692.93
5. Step 5: Solve for x
   x = 72,271,692.93/10,454.82
6. Step 6: Final answer
   x = 6,912.76