Finding the Fourth Proportional to 12,100.28, 18,150.60 and 3,779.96

Step by Step Solution

1. Step 1: Write the proportion equation
   12,100.28 : 18,150.60 = 3,779.96 : x
2. Step 2: Convert to fraction form
   12,100.28/18,150.60 = 3,779.96/x
3. Step 3: Cross multiply
   12,100.28x = 18,150.60 × 3,779.96
4. Step 4: Simplify right side
   12,100.28x = 68,608,541.98
5. Step 5: Solve for x
   x = 68,608,541.98/12,100.28
6. Step 6: Final answer
   x = 5,670.00