Finding the Fourth Proportional to 13,188.05, 19,780.53 and 3,327.41

Step by Step Solution

1. Step 1: Write the proportion equation
   13,188.05 : 19,780.53 = 3,327.41 : x
2. Step 2: Convert to fraction form
   13,188.05/19,780.53 = 3,327.41/x
3. Step 3: Cross multiply
   13,188.05x = 19,780.53 × 3,327.41
4. Step 4: Simplify right side
   13,188.05x = 65,817,834.42
5. Step 5: Solve for x
   x = 65,817,834.42/13,188.05
6. Step 6: Final answer
   x = 4,990.72