Finding the Fourth Proportional to 8,697.82, 12,002.70 and 5,158.96

Step by Step Solution

1. Step 1: Write the proportion equation
   8,697.82 : 12,002.70 = 5,158.96 : x
2. Step 2: Convert to fraction form
   8,697.82/12,002.70 = 5,158.96/x
3. Step 3: Cross multiply
   8,697.82x = 12,002.70 × 5,158.96
4. Step 4: Simplify right side
   8,697.82x = 61,921,449.19
5. Step 5: Solve for x
   x = 61,921,449.19/8,697.82
6. Step 6: Final answer
   x = 7,119.19