Finding the Fourth Proportional to 19,667.86, 27,141.68 and 10,715.33

Step by Step Solution

1. Step 1: Write the proportion equation
   19,667.86 : 27,141.68 = 10,715.33 : x
2. Step 2: Convert to fraction form
   19,667.86/27,141.68 = 10,715.33/x
3. Step 3: Cross multiply
   19,667.86x = 27,141.68 × 10,715.33
4. Step 4: Simplify right side
   19,667.86x = 290,832,057.95
5. Step 5: Solve for x
   x = 290,832,057.95/19,667.86
6. Step 6: Final answer
   x = 14,787.17