Finding the Fourth Proportional to 12,914.69, 17,825.24 and 8,430.53

Step by Step Solution

1. Step 1: Write the proportion equation
   12,914.69 : 17,825.24 = 8,430.53 : x
2. Step 2: Convert to fraction form
   12,914.69/17,825.24 = 8,430.53/x
3. Step 3: Cross multiply
   12,914.69x = 17,825.24 × 8,430.53
4. Step 4: Simplify right side
   12,914.69x = 150,276,152.53
5. Step 5: Solve for x
   x = 150,276,152.53/12,914.69
6. Step 6: Final answer
   x = 11,636.07