Finding the Fourth Proportional to 14,040.79, 21,060.52 and 3,510.88

Step by Step Solution

1. Step 1: Write the proportion equation
   14,040.79 : 21,060.52 = 3,510.88 : x
2. Step 2: Convert to fraction form
   14,040.79/21,060.52 = 3,510.88/x
3. Step 3: Cross multiply
   14,040.79x = 21,060.52 × 3,510.88
4. Step 4: Simplify right side
   14,040.79x = 73,940,958.46
5. Step 5: Solve for x
   x = 73,940,958.46/14,040.79
6. Step 6: Final answer
   x = 5,266.15