Finding the Fourth Proportional to 141,219, 194,899.50 and 81,603

Step by Step Solution

1. Step 1: Write the proportion equation
   141,219 : 194,899.50 = 81,603 : x
2. Step 2: Convert to fraction form
   141,219/194,899.50 = 81,603/x
3. Step 3: Cross multiply
   141,219x = 194,899.50 × 81,603
4. Step 4: Simplify right side
   141,219x = 15,904,383,898.50
5. Step 5: Solve for x
   x = 15,904,383,898.50/141,219
6. Step 6: Final answer
   x = 112,622.13