Finding the Fourth Proportional to 139,907.79, 209,882.34 and 49,943.52

Step by Step Solution

1. Step 1: Write the proportion equation
   139,907.79 : 209,882.34 = 49,943.52 : x
2. Step 2: Convert to fraction form
   139,907.79/209,882.34 = 49,943.52/x
3. Step 3: Cross multiply
   139,907.79x = 209,882.34 × 49,943.52
4. Step 4: Simplify right side
   139,907.79x = 10,482,262,845.44
5. Step 5: Solve for x
   x = 10,482,262,845.44/139,907.79
6. Step 6: Final answer
   x = 74,922.65