Finding the Fourth Proportional to 10,139.82, 14,002.56 and 9,587.59

Step by Step Solution

1. Step 1: Write the proportion equation
   10,139.82 : 14,002.56 = 9,587.59 : x
2. Step 2: Convert to fraction form
   10,139.82/14,002.56 = 9,587.59/x
3. Step 3: Cross multiply
   10,139.82x = 14,002.56 × 9,587.59
4. Step 4: Simplify right side
   10,139.82x = 134,250,804.23
5. Step 5: Solve for x
   x = 134,250,804.23/10,139.82
6. Step 6: Final answer
   x = 13,239.96