Finding the Fourth Proportional to 19,927.98, 27,507.54 and 12,380.10

Step by Step Solution

1. Step 1: Write the proportion equation
   19,927.98 : 27,507.54 = 12,380.10 : x
2. Step 2: Convert to fraction form
   19,927.98/27,507.54 = 12,380.10/x
3. Step 3: Cross multiply
   19,927.98x = 27,507.54 × 12,380.10
4. Step 4: Simplify right side
   19,927.98x = 340,546,095.95
5. Step 5: Solve for x
   x = 340,546,095.95/19,927.98
6. Step 6: Final answer
   x = 17,088.84