Finding the Fourth Proportional to 23,139.48, 34,702.06 and 8,346.50

Step by Step Solution

1. Step 1: Write the proportion equation
   23,139.48 : 34,702.06 = 8,346.50 : x
2. Step 2: Convert to fraction form
   23,139.48/34,702.06 = 8,346.50/x
3. Step 3: Cross multiply
   23,139.48x = 34,702.06 × 8,346.50
4. Step 4: Simplify right side
   23,139.48x = 289,640,743.79
5. Step 5: Solve for x
   x = 289,640,743.79/23,139.48
6. Step 6: Final answer
   x = 12,517.17