Finding the Fourth Proportional to 10,401.60, 14,339.82 and 7,039.08

Step by Step Solution

1. Step 1: Write the proportion equation
   10,401.60 : 14,339.82 = 7,039.08 : x
2. Step 2: Convert to fraction form
   10,401.60/14,339.82 = 7,039.08/x
3. Step 3: Cross multiply
   10,401.60x = 14,339.82 × 7,039.08
4. Step 4: Simplify right side
   10,401.60x = 100,939,140.17
5. Step 5: Solve for x
   x = 100,939,140.17/10,401.60
6. Step 6: Final answer
   x = 9,704.19