Finding the Fourth Proportional to 141,018.63, 194,603.90 and 80,588.58

Step by Step Solution

1. Step 1: Write the proportion equation
   141,018.63 : 194,603.90 = 80,588.58 : x
2. Step 2: Convert to fraction form
   141,018.63/194,603.90 = 80,588.58/x
3. Step 3: Cross multiply
   141,018.63x = 194,603.90 × 80,588.58
4. Step 4: Simplify right side
   141,018.63x = 15,682,851,560.52
5. Step 5: Solve for x
   x = 15,682,851,560.52/141,018.63
6. Step 6: Final answer
   x = 111,211.20