Finding the Fourth Proportional to 19,667.94, 27,141.66 and 10,715.55

Step by Step Solution

1. Step 1: Write the proportion equation
   19,667.94 : 27,141.66 = 10,715.55 : x
2. Step 2: Convert to fraction form
   19,667.94/27,141.66 = 10,715.55/x
3. Step 3: Cross multiply
   19,667.94x = 27,141.66 × 10,715.55
4. Step 4: Simplify right side
   19,667.94x = 290,837,814.81
5. Step 5: Solve for x
   x = 290,837,814.81/19,667.94
6. Step 6: Final answer
   x = 14,787.41