Finding the Fourth Proportional to 14,087.61, 19,441.20 and 7,714.47

Step by Step Solution

1. Step 1: Write the proportion equation
   14,087.61 : 19,441.20 = 7,714.47 : x
2. Step 2: Convert to fraction form
   14,087.61/19,441.20 = 7,714.47/x
3. Step 3: Cross multiply
   14,087.61x = 19,441.20 × 7,714.47
4. Step 4: Simplify right side
   14,087.61x = 149,978,554.16
5. Step 5: Solve for x
   x = 149,978,554.16/14,087.61
6. Step 6: Final answer
   x = 10,646.13