Finding the Fourth Proportional to 13,127.05, 19,686.27 and 4,359.61

Step by Step Solution

1. Step 1: Write the proportion equation
   13,127.05 : 19,686.27 = 4,359.61 : x
2. Step 2: Convert to fraction form
   13,127.05/19,686.27 = 4,359.61/x
3. Step 3: Cross multiply
   13,127.05x = 19,686.27 × 4,359.61
4. Step 4: Simplify right side
   13,127.05x = 85,824,361.12
5. Step 5: Solve for x
   x = 85,824,361.12/13,127.05
6. Step 6: Final answer
   x = 6,537.98