Finding the Fourth Proportional to 19,672.50, 27,148.05 and 10,840.50

Step by Step Solution

1. Step 1: Write the proportion equation
   19,672.50 : 27,148.05 = 10,840.50 : x
2. Step 2: Convert to fraction form
   19,672.50/27,148.05 = 10,840.50/x
3. Step 3: Cross multiply
   19,672.50x = 27,148.05 × 10,840.50
4. Step 4: Simplify right side
   19,672.50x = 294,298,436.03
5. Step 5: Solve for x
   x = 294,298,436.03/19,672.50
6. Step 6: Final answer
   x = 14,959.89