Finding the Fourth Proportional to 12,673.56, 19,008.30 and 3,788.76

Step by Step Solution

1. Step 1: Write the proportion equation
   12,673.56 : 19,008.30 = 3,788.76 : x
2. Step 2: Convert to fraction form
   12,673.56/19,008.30 = 3,788.76/x
3. Step 3: Cross multiply
   12,673.56x = 19,008.30 × 3,788.76
4. Step 4: Simplify right side
   12,673.56x = 72,017,886.71
5. Step 5: Solve for x
   x = 72,017,886.71/12,673.56
6. Step 6: Final answer
   x = 5,682.53