Finding the Fourth Proportional to 8,429.60, 12,642.66 and 2,506.52

Step by Step Solution

1. Step 1: Write the proportion equation
   8,429.60 : 12,642.66 = 2,506.52 : x
2. Step 2: Convert to fraction form
   8,429.60/12,642.66 = 2,506.52/x
3. Step 3: Cross multiply
   8,429.60x = 12,642.66 × 2,506.52
4. Step 4: Simplify right side
   8,429.60x = 31,689,111.75
5. Step 5: Solve for x
   x = 31,689,111.75/8,429.60
6. Step 6: Final answer
   x = 3,759.27