Finding the Fourth Proportional to 8,611.31, 12,904.94 and 4,654.04

Step by Step Solution

1. Step 1: Write the proportion equation
   8,611.31 : 12,904.94 = 4,654.04 : x
2. Step 2: Convert to fraction form
   8,611.31/12,904.94 = 4,654.04/x
3. Step 3: Cross multiply
   8,611.31x = 12,904.94 × 4,654.04
4. Step 4: Simplify right side
   8,611.31x = 60,060,067.56
5. Step 5: Solve for x
   x = 60,060,067.56/8,611.31
6. Step 6: Final answer
   x = 6,974.55