Finding the Fourth Proportional to 139,015.32, 208,547.69 and 50,392.62

Step by Step Solution

1. Step 1: Write the proportion equation
   139,015.32 : 208,547.69 = 50,392.62 : x
2. Step 2: Convert to fraction form
   139,015.32/208,547.69 = 50,392.62/x
3. Step 3: Cross multiply
   139,015.32x = 208,547.69 × 50,392.62
4. Step 4: Simplify right side
   139,015.32x = 10,509,264,242.08
5. Step 5: Solve for x
   x = 10,509,264,242.08/139,015.32
6. Step 6: Final answer
   x = 75,597.89