Finding the Fourth Proportional to 12,974, 19,461.72 and 3,740.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,974 : 19,461.72 = 3,740.72 : x
2. Step 2: Convert to fraction form
   12,974/19,461.72 = 3,740.72/x
3. Step 3: Cross multiply
   12,974x = 19,461.72 × 3,740.72
4. Step 4: Simplify right side
   12,974x = 72,800,845.24
5. Step 5: Solve for x
   x = 72,800,845.24/12,974
6. Step 6: Final answer
   x = 5,611.29