Finding the Fourth Proportional to 149,554, 206,388.84 and 82,490.32

Step by Step Solution

1. Step 1: Write the proportion equation
   149,554 : 206,388.84 = 82,490.32 : x
2. Step 2: Convert to fraction form
   149,554/206,388.84 = 82,490.32/x
3. Step 3: Cross multiply
   149,554x = 206,388.84 × 82,490.32
4. Step 4: Simplify right side
   149,554x = 17,025,081,456.03
5. Step 5: Solve for x
   x = 17,025,081,456.03/149,554
6. Step 6: Final answer
   x = 113,839.02