Finding the Fourth Proportional to 83,782.83, 125,673.15 and 20,603.51

Step by Step Solution

1. Step 1: Write the proportion equation
   83,782.83 : 125,673.15 = 20,603.51 : x
2. Step 2: Convert to fraction form
   83,782.83/125,673.15 = 20,603.51/x
3. Step 3: Cross multiply
   83,782.83x = 125,673.15 × 20,603.51
4. Step 4: Simplify right side
   83,782.83x = 2,589,307,374.39
5. Step 5: Solve for x
   x = 2,589,307,374.39/83,782.83
6. Step 6: Final answer
   x = 30,904.99