Finding the Fourth Proportional to 81,196.63, 121,780.56 and 22,036.90

Step by Step Solution

1. Step 1: Write the proportion equation
   81,196.63 : 121,780.56 = 22,036.90 : x
2. Step 2: Convert to fraction form
   81,196.63/121,780.56 = 22,036.90/x
3. Step 3: Cross multiply
   81,196.63x = 121,780.56 × 22,036.90
4. Step 4: Simplify right side
   81,196.63x = 2,683,666,022.66
5. Step 5: Solve for x
   x = 2,683,666,022.66/81,196.63
6. Step 6: Final answer
   x = 33,051.45