Finding the Fourth Proportional to 12,754.69, 17,605.82 and 7,913.12

Step by Step Solution

1. Step 1: Write the proportion equation
   12,754.69 : 17,605.82 = 7,913.12 : x
2. Step 2: Convert to fraction form
   12,754.69/17,605.82 = 7,913.12/x
3. Step 3: Cross multiply
   12,754.69x = 17,605.82 × 7,913.12
4. Step 4: Simplify right side
   12,754.69x = 139,316,898.11
5. Step 5: Solve for x
   x = 139,316,898.11/12,754.69
6. Step 6: Final answer
   x = 10,922.80