Finding the Fourth Proportional to 141,238.50, 194,926.41 and 81,622.50

Step by Step Solution

1. Step 1: Write the proportion equation
   141,238.50 : 194,926.41 = 81,622.50 : x
2. Step 2: Convert to fraction form
   141,238.50/194,926.41 = 81,622.50/x
3. Step 3: Cross multiply
   141,238.50x = 194,926.41 × 81,622.50
4. Step 4: Simplify right side
   141,238.50x = 15,910,380,900.23
5. Step 5: Solve for x
   x = 15,910,380,900.23/141,238.50
6. Step 6: Final answer
   x = 112,649.04