Finding the Fourth Proportional to 9,083.79, 12,536.37 and 5,256.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,083.79 : 12,536.37 = 5,256.72 : x
2. Step 2: Convert to fraction form
   9,083.79/12,536.37 = 5,256.72/x
3. Step 3: Cross multiply
   9,083.79x = 12,536.37 × 5,256.72
4. Step 4: Simplify right side
   9,083.79x = 65,900,186.91
5. Step 5: Solve for x
   x = 65,900,186.91/9,083.79
6. Step 6: Final answer
   x = 7,254.70