Finding the Fourth Proportional to 84,877.69, 117,079.31 and 50,399.05

Step by Step Solution

1. Step 1: Write the proportion equation
   84,877.69 : 117,079.31 = 50,399.05 : x
2. Step 2: Convert to fraction form
   84,877.69/117,079.31 = 50,399.05/x
3. Step 3: Cross multiply
   84,877.69x = 117,079.31 × 50,399.05
4. Step 4: Simplify right side
   84,877.69x = 5,900,685,161.26
5. Step 5: Solve for x
   x = 5,900,685,161.26/84,877.69
6. Step 6: Final answer
   x = 69,519.86