Finding the Fourth Proportional to 12,308.19, 16,985.35 and 7,002.89

Step by Step Solution

1. Step 1: Write the proportion equation
   12,308.19 : 16,985.35 = 7,002.89 : x
2. Step 2: Convert to fraction form
   12,308.19/16,985.35 = 7,002.89/x
3. Step 3: Cross multiply
   12,308.19x = 16,985.35 × 7,002.89
4. Step 4: Simplify right side
   12,308.19x = 118,946,485.79
5. Step 5: Solve for x
   x = 118,946,485.79/12,308.19
6. Step 6: Final answer
   x = 9,664.01