Finding the Fourth Proportional to 13,284.06, 18,332.01 and 7,315.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,284.06 : 18,332.01 = 7,315.72 : x
2. Step 2: Convert to fraction form
   13,284.06/18,332.01 = 7,315.72/x
3. Step 3: Cross multiply
   13,284.06x = 18,332.01 × 7,315.72
4. Step 4: Simplify right side
   13,284.06x = 134,111,833.91
5. Step 5: Solve for x
   x = 134,111,833.91/13,284.06
6. Step 6: Final answer
   x = 10,095.69