Finding the Fourth Proportional to 12,459.04, 17,194.64 and 7,154.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,459.04 : 17,194.64 = 7,154.72 : x
2. Step 2: Convert to fraction form
   12,459.04/17,194.64 = 7,154.72/x
3. Step 3: Cross multiply
   12,459.04x = 17,194.64 × 7,154.72
4. Step 4: Simplify right side
   12,459.04x = 123,022,834.70
5. Step 5: Solve for x
   x = 123,022,834.70/12,459.04
6. Step 6: Final answer
   x = 9,874.18