Finding the Fourth Proportional to 148,142.25, 204,436.71 and 81,074.25

Step by Step Solution

1. Step 1: Write the proportion equation
   148,142.25 : 204,436.71 = 81,074.25 : x
2. Step 2: Convert to fraction form
   148,142.25/204,436.71 = 81,074.25/x
3. Step 3: Cross multiply
   148,142.25x = 204,436.71 × 81,074.25
4. Step 4: Simplify right side
   148,142.25x = 16,574,552,935.72
5. Step 5: Solve for x
   x = 16,574,552,935.72/148,142.25
6. Step 6: Final answer
   x = 111,882.69