Finding the Fourth Proportional to 14,127.21, 19,495.67 and 7,839.69

Step by Step Solution

1. Step 1: Write the proportion equation
   14,127.21 : 19,495.67 = 7,839.69 : x
2. Step 2: Convert to fraction form
   14,127.21/19,495.67 = 7,839.69/x
3. Step 3: Cross multiply
   14,127.21x = 19,495.67 × 7,839.69
4. Step 4: Simplify right side
   14,127.21x = 152,839,969.94
5. Step 5: Solve for x
   x = 152,839,969.94/14,127.21
6. Step 6: Final answer
   x = 10,818.84