Finding the Fourth Proportional to 9,016.58, 12,439.02 and 5,657.10

Step by Step Solution

1. Step 1: Write the proportion equation
   9,016.58 : 12,439.02 = 5,657.10 : x
2. Step 2: Convert to fraction form
   9,016.58/12,439.02 = 5,657.10/x
3. Step 3: Cross multiply
   9,016.58x = 12,439.02 × 5,657.10
4. Step 4: Simplify right side
   9,016.58x = 70,368,780.04
5. Step 5: Solve for x
   x = 70,368,780.04/9,016.58
6. Step 6: Final answer
   x = 7,804.38