Finding the Fourth Proportional to 7,672.56, 11,500.86 and 5,207.58

Step by Step Solution

1. Step 1: Write the proportion equation
   7,672.56 : 11,500.86 = 5,207.58 : x
2. Step 2: Convert to fraction form
   7,672.56/11,500.86 = 5,207.58/x
3. Step 3: Cross multiply
   7,672.56x = 11,500.86 × 5,207.58
4. Step 4: Simplify right side
   7,672.56x = 59,891,648.52
5. Step 5: Solve for x
   x = 59,891,648.52/7,672.56
6. Step 6: Final answer
   x = 7,805.95