Finding the Fourth Proportional to 84,231.35, 116,238.38 and 45,990.78

Step by Step Solution

1. Step 1: Write the proportion equation
   84,231.35 : 116,238.38 = 45,990.78 : x
2. Step 2: Convert to fraction form
   84,231.35/116,238.38 = 45,990.78/x
3. Step 3: Cross multiply
   84,231.35x = 116,238.38 × 45,990.78
4. Step 4: Simplify right side
   84,231.35x = 5,345,893,400.47
5. Step 5: Solve for x
   x = 5,345,893,400.47/84,231.35
6. Step 6: Final answer
   x = 63,466.79