Finding the Fourth Proportional to 12,308.42, 16,985.48 and 7,003.24

Step by Step Solution

1. Step 1: Write the proportion equation
   12,308.42 : 16,985.48 = 7,003.24 : x
2. Step 2: Convert to fraction form
   12,308.42/16,985.48 = 7,003.24/x
3. Step 3: Cross multiply
   12,308.42x = 16,985.48 × 7,003.24
4. Step 4: Simplify right side
   12,308.42x = 118,953,392.96
5. Step 5: Solve for x
   x = 118,953,392.96/12,308.42
6. Step 6: Final answer
   x = 9,664.39