Finding the Fourth Proportional to 141,282.69, 194,998.76 and 86,810.05

Step by Step Solution

1. Step 1: Write the proportion equation
   141,282.69 : 194,998.76 = 86,810.05 : x
2. Step 2: Convert to fraction form
   141,282.69/194,998.76 = 86,810.05/x
3. Step 3: Cross multiply
   141,282.69x = 194,998.76 × 86,810.05
4. Step 4: Simplify right side
   141,282.69x = 16,927,852,105.54
5. Step 5: Solve for x
   x = 16,927,852,105.54/141,282.69
6. Step 6: Final answer
   x = 119,815.47