Finding the Fourth Proportional to 19,782, 27,303.72 and 13,068.96

Step by Step Solution

1. Step 1: Write the proportion equation
   19,782 : 27,303.72 = 13,068.96 : x
2. Step 2: Convert to fraction form
   19,782/27,303.72 = 13,068.96/x
3. Step 3: Cross multiply
   19,782x = 27,303.72 × 13,068.96
4. Step 4: Simplify right side
   19,782x = 356,831,224.53
5. Step 5: Solve for x
   x = 356,831,224.53/19,782
6. Step 6: Final answer
   x = 18,038.18