Finding the Fourth Proportional to 6,114.99, 8,443.53 and 3,991.98

Step by Step Solution

1. Step 1: Write the proportion equation
   6,114.99 : 8,443.53 = 3,991.98 : x
2. Step 2: Convert to fraction form
   6,114.99/8,443.53 = 3,991.98/x
3. Step 3: Cross multiply
   6,114.99x = 8,443.53 × 3,991.98
4. Step 4: Simplify right side
   6,114.99x = 33,706,402.89
5. Step 5: Solve for x
   x = 33,706,402.89/6,114.99
6. Step 6: Final answer
   x = 5,512.09