Finding the Fourth Proportional to 10,087.31, 15,132.59 and 4,245.59

Step by Step Solution

1. Step 1: Write the proportion equation
   10,087.31 : 15,132.59 = 4,245.59 : x
2. Step 2: Convert to fraction form
   10,087.31/15,132.59 = 4,245.59/x
3. Step 3: Cross multiply
   10,087.31x = 15,132.59 × 4,245.59
4. Step 4: Simplify right side
   10,087.31x = 64,246,675.89
5. Step 5: Solve for x
   x = 64,246,675.89/10,087.31
6. Step 6: Final answer
   x = 6,369.06