Finding the Fourth Proportional to 9,145.77, 12,613.26 and 5,957.86

Step by Step Solution

1. Step 1: Write the proportion equation
   9,145.77 : 12,613.26 = 5,957.86 : x
2. Step 2: Convert to fraction form
   9,145.77/12,613.26 = 5,957.86/x
3. Step 3: Cross multiply
   9,145.77x = 12,613.26 × 5,957.86
4. Step 4: Simplify right side
   9,145.77x = 75,148,018.17
5. Step 5: Solve for x
   x = 75,148,018.17/9,145.77
6. Step 6: Final answer
   x = 8,216.70