Finding the Fourth Proportional to 14,185.53, 19,576.56 and 7,812.39

Step by Step Solution

1. Step 1: Write the proportion equation
   14,185.53 : 19,576.56 = 7,812.39 : x
2. Step 2: Convert to fraction form
   14,185.53/19,576.56 = 7,812.39/x
3. Step 3: Cross multiply
   14,185.53x = 19,576.56 × 7,812.39
4. Step 4: Simplify right side
   14,185.53x = 152,939,584.63
5. Step 5: Solve for x
   x = 152,939,584.63/14,185.53
6. Step 6: Final answer
   x = 10,781.38