Finding the Fourth Proportional to 12,073.58, 18,106.88 and 3,308.78

Step by Step Solution

1. Step 1: Write the proportion equation
   12,073.58 : 18,106.88 = 3,308.78 : x
2. Step 2: Convert to fraction form
   12,073.58/18,106.88 = 3,308.78/x
3. Step 3: Cross multiply
   12,073.58x = 18,106.88 × 3,308.78
4. Step 4: Simplify right side
   12,073.58x = 59,911,682.41
5. Step 5: Solve for x
   x = 59,911,682.41/12,073.58
6. Step 6: Final answer
   x = 4,962.21