Finding the Fourth Proportional to 141,361.72, 195,124.71 and 90,511.36

Step by Step Solution

1. Step 1: Write the proportion equation
   141,361.72 : 195,124.71 = 90,511.36 : x
2. Step 2: Convert to fraction form
   141,361.72/195,124.71 = 90,511.36/x
3. Step 3: Cross multiply
   141,361.72x = 195,124.71 × 90,511.36
4. Step 4: Simplify right side
   141,361.72x = 17,661,002,871.71
5. Step 5: Solve for x
   x = 17,661,002,871.71/141,361.72
6. Step 6: Final answer
   x = 124,934.83