Finding the Fourth Proportional to 6,172.12, 8,521.50 and 5,507.83

Step by Step Solution

1. Step 1: Write the proportion equation
   6,172.12 : 8,521.50 = 5,507.83 : x
2. Step 2: Convert to fraction form
   6,172.12/8,521.50 = 5,507.83/x
3. Step 3: Cross multiply
   6,172.12x = 8,521.50 × 5,507.83
4. Step 4: Simplify right side
   6,172.12x = 46,934,973.35
5. Step 5: Solve for x
   x = 46,934,973.35/6,172.12
6. Step 6: Final answer
   x = 7,604.35