Finding the Fourth Proportional to 13,939.52, 19,236.15 and 7,651.89

Step by Step Solution

1. Step 1: Write the proportion equation
   13,939.52 : 19,236.15 = 7,651.89 : x
2. Step 2: Convert to fraction form
   13,939.52/19,236.15 = 7,651.89/x
3. Step 3: Cross multiply
   13,939.52x = 19,236.15 × 7,651.89
4. Step 4: Simplify right side
   13,939.52x = 147,192,903.82
5. Step 5: Solve for x
   x = 147,192,903.82/13,939.52
6. Step 6: Final answer
   x = 10,559.40