Finding the Fourth Proportional to 12,149.67, 18,223.83 and 5,126.70

Step by Step Solution

1. Step 1: Write the proportion equation
   12,149.67 : 18,223.83 = 5,126.70 : x
2. Step 2: Convert to fraction form
   12,149.67/18,223.83 = 5,126.70/x
3. Step 3: Cross multiply
   12,149.67x = 18,223.83 × 5,126.70
4. Step 4: Simplify right side
   12,149.67x = 93,428,109.26
5. Step 5: Solve for x
   x = 93,428,109.26/12,149.67
6. Step 6: Final answer
   x = 7,689.77