Finding the Fourth Proportional to 4,953.66, 7,434.12 and 3,991.38

Step by Step Solution

1. Step 1: Write the proportion equation
   4,953.66 : 7,434.12 = 3,991.38 : x
2. Step 2: Convert to fraction form
   4,953.66/7,434.12 = 3,991.38/x
3. Step 3: Cross multiply
   4,953.66x = 7,434.12 × 3,991.38
4. Step 4: Simplify right side
   4,953.66x = 29,672,397.89
5. Step 5: Solve for x
   x = 29,672,397.89/4,953.66
6. Step 6: Final answer
   x = 5,989.99