Finding the Fourth Proportional to 19,820.34, 27,360.79 and 13,875.34

Step by Step Solution

1. Step 1: Write the proportion equation
   19,820.34 : 27,360.79 = 13,875.34 : x
2. Step 2: Convert to fraction form
   19,820.34/27,360.79 = 13,875.34/x
3. Step 3: Cross multiply
   19,820.34x = 27,360.79 × 13,875.34
4. Step 4: Simplify right side
   19,820.34x = 379,640,263.92
5. Step 5: Solve for x
   x = 379,640,263.92/19,820.34
6. Step 6: Final answer
   x = 19,154.07