Finding the Fourth Proportional to 139,846.40, 209,718.72 and 60,941.44

Step by Step Solution

1. Step 1: Write the proportion equation
   139,846.40 : 209,718.72 = 60,941.44 : x
2. Step 2: Convert to fraction form
   139,846.40/209,718.72 = 60,941.44/x
3. Step 3: Cross multiply
   139,846.40x = 209,718.72 × 60,941.44
4. Step 4: Simplify right side
   139,846.40x = 12,780,560,791.76
5. Step 5: Solve for x
   x = 12,780,560,791.76/139,846.40
6. Step 6: Final answer
   x = 91,389.99