Finding the Fourth Proportional to 12,118.95, 18,171.59 and 4,714.94

Step by Step Solution

1. Step 1: Write the proportion equation
   12,118.95 : 18,171.59 = 4,714.94 : x
2. Step 2: Convert to fraction form
   12,118.95/18,171.59 = 4,714.94/x
3. Step 3: Cross multiply
   12,118.95x = 18,171.59 × 4,714.94
4. Step 4: Simplify right side
   12,118.95x = 85,677,978.41
5. Step 5: Solve for x
   x = 85,677,978.41/12,118.95
6. Step 6: Final answer
   x = 7,069.75