Finding the Fourth Proportional to 9,625.52, 14,443.07 and 5,406.15

Step by Step Solution

1. Step 1: Write the proportion equation
   9,625.52 : 14,443.07 = 5,406.15 : x
2. Step 2: Convert to fraction form
   9,625.52/14,443.07 = 5,406.15/x
3. Step 3: Cross multiply
   9,625.52x = 14,443.07 × 5,406.15
4. Step 4: Simplify right side
   9,625.52x = 78,081,402.88
5. Step 5: Solve for x
   x = 78,081,402.88/9,625.52
6. Step 6: Final answer
   x = 8,111.92