Finding the Fourth Proportional to 82,890, 124,187.58 and 47,757.06

Step by Step Solution

1. Step 1: Write the proportion equation
   82,890 : 124,187.58 = 47,757.06 : x
2. Step 2: Convert to fraction form
   82,890/124,187.58 = 47,757.06/x
3. Step 3: Cross multiply
   82,890x = 124,187.58 × 47,757.06
4. Step 4: Simplify right side
   82,890x = 5,930,833,709.31
5. Step 5: Solve for x
   x = 5,930,833,709.31/82,890
6. Step 6: Final answer
   x = 71,550.65