Finding the Fourth Proportional to 5,145.86, 7,717.62 and 3,066.45

Step by Step Solution

1. Step 1: Write the proportion equation
   5,145.86 : 7,717.62 = 3,066.45 : x
2. Step 2: Convert to fraction form
   5,145.86/7,717.62 = 3,066.45/x
3. Step 3: Cross multiply
   5,145.86x = 7,717.62 × 3,066.45
4. Step 4: Simplify right side
   5,145.86x = 23,665,707.35
5. Step 5: Solve for x
   x = 23,665,707.35/5,145.86
6. Step 6: Final answer
   x = 4,598.98