Finding the Fourth Proportional to 8,428.51, 12,637.37 and 3,501.55

Step by Step Solution

1. Step 1: Write the proportion equation
   8,428.51 : 12,637.37 = 3,501.55 : x
2. Step 2: Convert to fraction form
   8,428.51/12,637.37 = 3,501.55/x
3. Step 3: Cross multiply
   8,428.51x = 12,637.37 × 3,501.55
4. Step 4: Simplify right side
   8,428.51x = 44,250,365.42
5. Step 5: Solve for x
   x = 44,250,365.42/8,428.51
6. Step 6: Final answer
   x = 5,250.08