Finding the Fourth Proportional to 8,693.38, 12,003.43 and 5,340.79

Step by Step Solution

1. Step 1: Write the proportion equation
   8,693.38 : 12,003.43 = 5,340.79 : x
2. Step 2: Convert to fraction form
   8,693.38/12,003.43 = 5,340.79/x
3. Step 3: Cross multiply
   8,693.38x = 12,003.43 × 5,340.79
4. Step 4: Simplify right side
   8,693.38x = 64,107,738.89
5. Step 5: Solve for x
   x = 64,107,738.89/8,693.38
6. Step 6: Final answer
   x = 7,374.32