Finding the Fourth Proportional to 12,127.89, 16,732.36 and 7,349.31

Step by Step Solution

1. Step 1: Write the proportion equation
   12,127.89 : 16,732.36 = 7,349.31 : x
2. Step 2: Convert to fraction form
   12,127.89/16,732.36 = 7,349.31/x
3. Step 3: Cross multiply
   12,127.89x = 16,732.36 × 7,349.31
4. Step 4: Simplify right side
   12,127.89x = 122,971,300.67
5. Step 5: Solve for x
   x = 122,971,300.67/12,127.89
6. Step 6: Final answer
   x = 10,139.55