Finding the Fourth Proportional to 12,070.10, 18,109.25 and 3,751.30

Step by Step Solution

1. Step 1: Write the proportion equation
   12,070.10 : 18,109.25 = 3,751.30 : x
2. Step 2: Convert to fraction form
   12,070.10/18,109.25 = 3,751.30/x
3. Step 3: Cross multiply
   12,070.10x = 18,109.25 × 3,751.30
4. Step 4: Simplify right side
   12,070.10x = 67,933,229.53
5. Step 5: Solve for x
   x = 67,933,229.53/12,070.10
6. Step 6: Final answer
   x = 5,628.22