Finding the Fourth Proportional to 12,520.74, 18,784.77 and 3,756.96

Step by Step Solution

1. Step 1: Write the proportion equation
   12,520.74 : 18,784.77 = 3,756.96 : x
2. Step 2: Convert to fraction form
   12,520.74/18,784.77 = 3,756.96/x
3. Step 3: Cross multiply
   12,520.74x = 18,784.77 × 3,756.96
4. Step 4: Simplify right side
   12,520.74x = 70,573,629.50
5. Step 5: Solve for x
   x = 70,573,629.50/12,520.74
6. Step 6: Final answer
   x = 5,636.54