Finding the Fourth Proportional to 12,523.64, 18,788.34 and 3,758.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,523.64 : 18,788.34 = 3,758.72 : x
2. Step 2: Convert to fraction form
   12,523.64/18,788.34 = 3,758.72/x
3. Step 3: Cross multiply
   12,523.64x = 18,788.34 × 3,758.72
4. Step 4: Simplify right side
   12,523.64x = 70,620,109.32
5. Step 5: Solve for x
   x = 70,620,109.32/12,523.64
6. Step 6: Final answer
   x = 5,638.94