Finding the Fourth Proportional to 9,182.84, 12,672.42 and 4,991.10

Step by Step Solution

1. Step 1: Write the proportion equation
   9,182.84 : 12,672.42 = 4,991.10 : x
2. Step 2: Convert to fraction form
   9,182.84/12,672.42 = 4,991.10/x
3. Step 3: Cross multiply
   9,182.84x = 12,672.42 × 4,991.10
4. Step 4: Simplify right side
   9,182.84x = 63,249,315.46
5. Step 5: Solve for x
   x = 63,249,315.46/9,182.84
6. Step 6: Final answer
   x = 6,887.77