Finding the Fourth Proportional to 8,629.47, 12,941.43 and 2,784.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,629.47 : 12,941.43 = 2,784.72 : x
2. Step 2: Convert to fraction form
   8,629.47/12,941.43 = 2,784.72/x
3. Step 3: Cross multiply
   8,629.47x = 12,941.43 × 2,784.72
4. Step 4: Simplify right side
   8,629.47x = 36,038,258.95
5. Step 5: Solve for x
   x = 36,038,258.95/8,629.47
6. Step 6: Final answer
   x = 4,176.18