Finding the Fourth Proportional to 9,491.04, 14,241.42 and 5,112.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,491.04 : 14,241.42 = 5,112.72 : x
2. Step 2: Convert to fraction form
   9,491.04/14,241.42 = 5,112.72/x
3. Step 3: Cross multiply
   9,491.04x = 14,241.42 × 5,112.72
4. Step 4: Simplify right side
   9,491.04x = 72,812,392.86
5. Step 5: Solve for x
   x = 72,812,392.86/9,491.04
6. Step 6: Final answer
   x = 7,671.70