Finding the Fourth Proportional to 12,315.02, 16,990.52 and 7,008.51

Step by Step Solution

1. Step 1: Write the proportion equation
   12,315.02 : 16,990.52 = 7,008.51 : x
2. Step 2: Convert to fraction form
   12,315.02/16,990.52 = 7,008.51/x
3. Step 3: Cross multiply
   12,315.02x = 16,990.52 × 7,008.51
4. Step 4: Simplify right side
   12,315.02x = 119,078,194.28
5. Step 5: Solve for x
   x = 119,078,194.28/12,315.02
6. Step 6: Final answer
   x = 9,669.34