Finding the Fourth Proportional to 19,826.74, 27,362.16 and 13,100.56

Step by Step Solution

1. Step 1: Write the proportion equation
   19,826.74 : 27,362.16 = 13,100.56 : x
2. Step 2: Convert to fraction form
   19,826.74/27,362.16 = 13,100.56/x
3. Step 3: Cross multiply
   19,826.74x = 27,362.16 × 13,100.56
4. Step 4: Simplify right side
   19,826.74x = 358,459,618.81
5. Step 5: Solve for x
   x = 358,459,618.81/19,826.74
6. Step 6: Final answer
   x = 18,079.60