Finding the Fourth Proportional to 78,847.38, 108,809.48 and 50,553.07

Step by Step Solution

1. Step 1: Write the proportion equation
   78,847.38 : 108,809.48 = 50,553.07 : x
2. Step 2: Convert to fraction form
   78,847.38/108,809.48 = 50,553.07/x
3. Step 3: Cross multiply
   78,847.38x = 108,809.48 × 50,553.07
4. Step 4: Simplify right side
   78,847.38x = 5,500,653,259.10
5. Step 5: Solve for x
   x = 5,500,653,259.10/78,847.38
6. Step 6: Final answer
   x = 69,763.30