Finding the Fourth Proportional to 141,906.06, 195,858.72 and 81,518.13

Step by Step Solution

1. Step 1: Write the proportion equation
   141,906.06 : 195,858.72 = 81,518.13 : x
2. Step 2: Convert to fraction form
   141,906.06/195,858.72 = 81,518.13/x
3. Step 3: Cross multiply
   141,906.06x = 195,858.72 × 81,518.13
4. Step 4: Simplify right side
   141,906.06x = 15,966,036,598.59
5. Step 5: Solve for x
   x = 15,966,036,598.59/141,906.06
6. Step 6: Final answer
   x = 112,511.31