Finding the Fourth Proportional to 148,124, 204,411.12 and 81,056

Step by Step Solution

1. Step 1: Write the proportion equation
   148,124 : 204,411.12 = 81,056 : x
2. Step 2: Convert to fraction form
   148,124/204,411.12 = 81,056/x
3. Step 3: Cross multiply
   148,124x = 204,411.12 × 81,056
4. Step 4: Simplify right side
   148,124x = 16,568,747,742.72
5. Step 5: Solve for x
   x = 16,568,747,742.72/148,124
6. Step 6: Final answer
   x = 111,857.28