Finding the Fourth Proportional to 12,796.08, 19,189.10 and 3,908.66

Step by Step Solution

1. Step 1: Write the proportion equation
   12,796.08 : 19,189.10 = 3,908.66 : x
2. Step 2: Convert to fraction form
   12,796.08/19,189.10 = 3,908.66/x
3. Step 3: Cross multiply
   12,796.08x = 19,189.10 × 3,908.66
4. Step 4: Simplify right side
   12,796.08x = 75,003,581.43
5. Step 5: Solve for x
   x = 75,003,581.43/12,796.08
6. Step 6: Final answer
   x = 5,861.45