Finding the Fourth Proportional to 81,196.05, 121,808.05 and 27,885.50

Step by Step Solution

1. Step 1: Write the proportion equation
   81,196.05 : 121,808.05 = 27,885.50 : x
2. Step 2: Convert to fraction form
   81,196.05/121,808.05 = 27,885.50/x
3. Step 3: Cross multiply
   81,196.05x = 121,808.05 × 27,885.50
4. Step 4: Simplify right side
   81,196.05x = 3,396,677,699.52
5. Step 5: Solve for x
   x = 3,396,677,699.52/81,196.05
6. Step 6: Final answer
   x = 41,833.04