Finding the Fourth Proportional to 42,020.45, 57,986.16 and 22,900.17

Step by Step Solution

1. Step 1: Write the proportion equation
   42,020.45 : 57,986.16 = 22,900.17 : x
2. Step 2: Convert to fraction form
   42,020.45/57,986.16 = 22,900.17/x
3. Step 3: Cross multiply
   42,020.45x = 57,986.16 × 22,900.17
4. Step 4: Simplify right side
   42,020.45x = 1,327,893,182.03
5. Step 5: Solve for x
   x = 1,327,893,182.03/42,020.45
6. Step 6: Final answer
   x = 31,601.11