Finding the Fourth Proportional to 12,308.67, 16,985.12 and 7,003.53

Step by Step Solution

1. Step 1: Write the proportion equation
   12,308.67 : 16,985.12 = 7,003.53 : x
2. Step 2: Convert to fraction form
   12,308.67/16,985.12 = 7,003.53/x
3. Step 3: Cross multiply
   12,308.67x = 16,985.12 × 7,003.53
4. Step 4: Simplify right side
   12,308.67x = 118,955,762.46
5. Step 5: Solve for x
   x = 118,955,762.46/12,308.67
6. Step 6: Final answer
   x = 9,664.39