Finding the Fourth Proportional to 139,476.04, 209,148.18 and 50,667.64

Step by Step Solution

1. Step 1: Write the proportion equation
   139,476.04 : 209,148.18 = 50,667.64 : x
2. Step 2: Convert to fraction form
   139,476.04/209,148.18 = 50,667.64/x
3. Step 3: Cross multiply
   139,476.04x = 209,148.18 × 50,667.64
4. Step 4: Simplify right side
   139,476.04x = 10,597,044,690.90
5. Step 5: Solve for x
   x = 10,597,044,690.90/139,476.04
6. Step 6: Final answer
   x = 75,977.53