Finding the Fourth Proportional to 139,519.02, 209,279.34 and 34,337.28

Step by Step Solution

1. Step 1: Write the proportion equation
   139,519.02 : 209,279.34 = 34,337.28 : x
2. Step 2: Convert to fraction form
   139,519.02/209,279.34 = 34,337.28/x
3. Step 3: Cross multiply
   139,519.02x = 209,279.34 × 34,337.28
4. Step 4: Simplify right side
   139,519.02x = 7,186,083,295.80
5. Step 5: Solve for x
   x = 7,186,083,295.80/139,519.02
6. Step 6: Final answer
   x = 51,506.12