Finding the Fourth Proportional to 10,620.83, 14,660.72 and 7,975.88

Step by Step Solution

1. Step 1: Write the proportion equation
   10,620.83 : 14,660.72 = 7,975.88 : x
2. Step 2: Convert to fraction form
   10,620.83/14,660.72 = 7,975.88/x
3. Step 3: Cross multiply
   10,620.83x = 14,660.72 × 7,975.88
4. Step 4: Simplify right side
   10,620.83x = 116,932,143.43
5. Step 5: Solve for x
   x = 116,932,143.43/10,620.83
6. Step 6: Final answer
   x = 11,009.70