Finding the Fourth Proportional to 149,100.68, 205,759.83 and 81,118.14

Step by Step Solution

1. Step 1: Write the proportion equation
   149,100.68 : 205,759.83 = 81,118.14 : x
2. Step 2: Convert to fraction form
   149,100.68/205,759.83 = 81,118.14/x
3. Step 3: Cross multiply
   149,100.68x = 205,759.83 × 81,118.14
4. Step 4: Simplify right side
   149,100.68x = 16,690,854,228.91
5. Step 5: Solve for x
   x = 16,690,854,228.91/149,100.68
6. Step 6: Final answer
   x = 111,943.51