Finding the Fourth Proportional to 19,669.50, 27,143.91 and 10,837.50

Step by Step Solution

1. Step 1: Write the proportion equation
   19,669.50 : 27,143.91 = 10,837.50 : x
2. Step 2: Convert to fraction form
   19,669.50/27,143.91 = 10,837.50/x
3. Step 3: Cross multiply
   19,669.50x = 27,143.91 × 10,837.50
4. Step 4: Simplify right side
   19,669.50x = 294,172,124.63
5. Step 5: Solve for x
   x = 294,172,124.63/19,669.50
6. Step 6: Final answer
   x = 14,955.75