Finding the Fourth Proportional to 12,196.84, 16,830.03 and 7,712.68

Step by Step Solution

1. Step 1: Write the proportion equation
   12,196.84 : 16,830.03 = 7,712.68 : x
2. Step 2: Convert to fraction form
   12,196.84/16,830.03 = 7,712.68/x
3. Step 3: Cross multiply
   12,196.84x = 16,830.03 × 7,712.68
4. Step 4: Simplify right side
   12,196.84x = 129,804,635.78
5. Step 5: Solve for x
   x = 129,804,635.78/12,196.84
6. Step 6: Final answer
   x = 10,642.48