Finding the Fourth Proportional to 139,532.30, 209,171.86 and 50,723.08

Step by Step Solution

1. Step 1: Write the proportion equation
   139,532.30 : 209,171.86 = 50,723.08 : x
2. Step 2: Convert to fraction form
   139,532.30/209,171.86 = 50,723.08/x
3. Step 3: Cross multiply
   139,532.30x = 209,171.86 × 50,723.08
4. Step 4: Simplify right side
   139,532.30x = 10,609,840,988.53
5. Step 5: Solve for x
   x = 10,609,840,988.53/139,532.30
6. Step 6: Final answer
   x = 76,038.60