Finding the Fourth Proportional to 81,947.50, 113,080.66 and 50,110.25

Step by Step Solution

1. Step 1: Write the proportion equation
   81,947.50 : 113,080.66 = 50,110.25 : x
2. Step 2: Convert to fraction form
   81,947.50/113,080.66 = 50,110.25/x
3. Step 3: Cross multiply
   81,947.50x = 113,080.66 × 50,110.25
4. Step 4: Simplify right side
   81,947.50x = 5,666,499,452.09
5. Step 5: Solve for x
   x = 5,666,499,452.09/81,947.50
6. Step 6: Final answer
   x = 69,147.93