Finding the Fourth Proportional to 141,087.06, 194,669.73 and 81,436.50

Step by Step Solution

1. Step 1: Write the proportion equation
   141,087.06 : 194,669.73 = 81,436.50 : x
2. Step 2: Convert to fraction form
   141,087.06/194,669.73 = 81,436.50/x
3. Step 3: Cross multiply
   141,087.06x = 194,669.73 × 81,436.50
4. Step 4: Simplify right side
   141,087.06x = 15,853,221,467.15
5. Step 5: Solve for x
   x = 15,853,221,467.15/141,087.06
6. Step 6: Final answer
   x = 112,364.82