Finding the Fourth Proportional to 148,210.02, 204,529.83 and 81,142.02

Step by Step Solution

1. Step 1: Write the proportion equation
   148,210.02 : 204,529.83 = 81,142.02 : x
2. Step 2: Convert to fraction form
   148,210.02/204,529.83 = 81,142.02/x
3. Step 3: Cross multiply
   148,210.02x = 204,529.83 × 81,142.02
4. Step 4: Simplify right side
   148,210.02x = 16,595,963,556.46
5. Step 5: Solve for x
   x = 16,595,963,556.46/148,210.02
6. Step 6: Final answer
   x = 111,975.99