Finding the Fourth Proportional to 19,667.07, 27,139.59 and 10,714.55

Step by Step Solution

1. Step 1: Write the proportion equation
   19,667.07 : 27,139.59 = 10,714.55 : x
2. Step 2: Convert to fraction form
   19,667.07/27,139.59 = 10,714.55/x
3. Step 3: Cross multiply
   19,667.07x = 27,139.59 × 10,714.55
4. Step 4: Simplify right side
   19,667.07x = 290,788,358.34
5. Step 5: Solve for x
   x = 290,788,358.34/19,667.07
6. Step 6: Final answer
   x = 14,785.55