Finding the Fourth Proportional to 12,983.32, 19,474.96 and 3,122.59

Step by Step Solution

1. Step 1: Write the proportion equation
   12,983.32 : 19,474.96 = 3,122.59 : x
2. Step 2: Convert to fraction form
   12,983.32/19,474.96 = 3,122.59/x
3. Step 3: Cross multiply
   12,983.32x = 19,474.96 × 3,122.59
4. Step 4: Simplify right side
   12,983.32x = 60,812,315.35
5. Step 5: Solve for x
   x = 60,812,315.35/12,983.32
6. Step 6: Final answer
   x = 4,683.88