Finding the Fourth Proportional to 148,086.09, 204,363.50 and 81,018.09

Step by Step Solution

1. Step 1: Write the proportion equation
   148,086.09 : 204,363.50 = 81,018.09 : x
2. Step 2: Convert to fraction form
   148,086.09/204,363.50 = 81,018.09/x
3. Step 3: Cross multiply
   148,086.09x = 204,363.50 × 81,018.09
4. Step 4: Simplify right side
   148,086.09x = 16,557,140,030.62
5. Step 5: Solve for x
   x = 16,557,140,030.62/148,086.09
6. Step 6: Final answer
   x = 111,807.53