Finding the Fourth Proportional to 12,671.67, 17,487.98 and 7,366.14

Step by Step Solution

1. Step 1: Write the proportion equation
   12,671.67 : 17,487.98 = 7,366.14 : x
2. Step 2: Convert to fraction form
   12,671.67/17,487.98 = 7,366.14/x
3. Step 3: Cross multiply
   12,671.67x = 17,487.98 × 7,366.14
4. Step 4: Simplify right side
   12,671.67x = 128,818,909.00
5. Step 5: Solve for x
   x = 128,818,909.00/12,671.67
6. Step 6: Final answer
   x = 10,165.90