Finding the Fourth Proportional to 83,109.33, 124,664.00 and 20,779.83

Step by Step Solution

1. Step 1: Write the proportion equation
   83,109.33 : 124,664.00 = 20,779.83 : x
2. Step 2: Convert to fraction form
   83,109.33/124,664.00 = 20,779.83/x
3. Step 3: Cross multiply
   83,109.33x = 124,664.00 × 20,779.83
4. Step 4: Simplify right side
   83,109.33x = 2,590,496,623.22
5. Step 5: Solve for x
   x = 2,590,496,623.22/83,109.33
6. Step 6: Final answer
   x = 31,169.75