Finding the Fourth Proportional to 13,939.72, 19,236.30 and 7,566.18

Step by Step Solution

1. Step 1: Write the proportion equation
   13,939.72 : 19,236.30 = 7,566.18 : x
2. Step 2: Convert to fraction form
   13,939.72/19,236.30 = 7,566.18/x
3. Step 3: Cross multiply
   13,939.72x = 19,236.30 × 7,566.18
4. Step 4: Simplify right side
   13,939.72x = 145,545,207.82
5. Step 5: Solve for x
   x = 145,545,207.82/13,939.72
6. Step 6: Final answer
   x = 10,441.04