Finding the Fourth Proportional to 12,675.31, 19,014.06 and 3,315.29

Step by Step Solution

1. Step 1: Write the proportion equation
   12,675.31 : 19,014.06 = 3,315.29 : x
2. Step 2: Convert to fraction form
   12,675.31/19,014.06 = 3,315.29/x
3. Step 3: Cross multiply
   12,675.31x = 19,014.06 × 3,315.29
4. Step 4: Simplify right side
   12,675.31x = 63,037,040.34
5. Step 5: Solve for x
   x = 63,037,040.34/12,675.31
6. Step 6: Final answer
   x = 4,973.22