Finding the Fourth Proportional to 19,856.72, 27,393.54 and 12,301.04

Step by Step Solution

1. Step 1: Write the proportion equation
   19,856.72 : 27,393.54 = 12,301.04 : x
2. Step 2: Convert to fraction form
   19,856.72/27,393.54 = 12,301.04/x
3. Step 3: Cross multiply
   19,856.72x = 27,393.54 × 12,301.04
4. Step 4: Simplify right side
   19,856.72x = 336,969,031.28
5. Step 5: Solve for x
   x = 336,969,031.28/19,856.72
6. Step 6: Final answer
   x = 16,970.02