Finding the Fourth Proportional to 83,215.09, 124,819.39 and 45,849.25

Step by Step Solution

1. Step 1: Write the proportion equation
   83,215.09 : 124,819.39 = 45,849.25 : x
2. Step 2: Convert to fraction form
   83,215.09/124,819.39 = 45,849.25/x
3. Step 3: Cross multiply
   83,215.09x = 124,819.39 × 45,849.25
4. Step 4: Simplify right side
   83,215.09x = 5,722,875,416.96
5. Step 5: Solve for x
   x = 5,722,875,416.96/83,215.09
6. Step 6: Final answer
   x = 68,772.09