Finding the Fourth Proportional to 8,291.02, 12,429.50 and 3,607.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,291.02 : 12,429.50 = 3,607.50 : x
2. Step 2: Convert to fraction form
   8,291.02/12,429.50 = 3,607.50/x
3. Step 3: Cross multiply
   8,291.02x = 12,429.50 × 3,607.50
4. Step 4: Simplify right side
   8,291.02x = 44,839,421.25
5. Step 5: Solve for x
   x = 44,839,421.25/8,291.02
6. Step 6: Final answer
   x = 5,408.19