Finding the Fourth Proportional to 13,624.72, 18,795.76 and 7,959.71

Step by Step Solution

1. Step 1: Write the proportion equation
   13,624.72 : 18,795.76 = 7,959.71 : x
2. Step 2: Convert to fraction form
   13,624.72/18,795.76 = 7,959.71/x
3. Step 3: Cross multiply
   13,624.72x = 18,795.76 × 7,959.71
4. Step 4: Simplify right side
   13,624.72x = 149,608,798.83
5. Step 5: Solve for x
   x = 149,608,798.83/13,624.72
6. Step 6: Final answer
   x = 10,980.69