Finding the Fourth Proportional to 8,977.23, 12,388.04 and 5,200.15

Step by Step Solution

1. Step 1: Write the proportion equation
   8,977.23 : 12,388.04 = 5,200.15 : x
2. Step 2: Convert to fraction form
   8,977.23/12,388.04 = 5,200.15/x
3. Step 3: Cross multiply
   8,977.23x = 12,388.04 × 5,200.15
4. Step 4: Simplify right side
   8,977.23x = 64,419,651.96
5. Step 5: Solve for x
   x = 64,419,651.96/8,977.23
6. Step 6: Final answer
   x = 7,175.89