Finding the Fourth Proportional to 195,894.72, 293,185.98 and 139,732.56

Step by Step Solution

1. Step 1: Write the proportion equation
   195,894.72 : 293,185.98 = 139,732.56 : x
2. Step 2: Convert to fraction form
   195,894.72/293,185.98 = 139,732.56/x
3. Step 3: Cross multiply
   195,894.72x = 293,185.98 × 139,732.56
4. Step 4: Simplify right side
   195,894.72x = 40,967,627,541.51
5. Step 5: Solve for x
   x = 40,967,627,541.51/195,894.72
6. Step 6: Final answer
   x = 209,130.84