Finding the Fourth Proportional to 30,783, 42,480.54 and 22,406.52

Step by Step Solution

1. Step 1: Write the proportion equation
   30,783 : 42,480.54 = 22,406.52 : x
2. Step 2: Convert to fraction form
   30,783/42,480.54 = 22,406.52/x
3. Step 3: Cross multiply
   30,783x = 42,480.54 × 22,406.52
4. Step 4: Simplify right side
   30,783x = 951,841,069.12
5. Step 5: Solve for x
   x = 951,841,069.12/30,783
6. Step 6: Final answer
   x = 30,921.00