Finding the Fourth Proportional to 42,020.13, 57,987.79 and 22,899.91

Step by Step Solution

1. Step 1: Write the proportion equation
   42,020.13 : 57,987.79 = 22,899.91 : x
2. Step 2: Convert to fraction form
   42,020.13/57,987.79 = 22,899.91/x
3. Step 3: Cross multiply
   42,020.13x = 57,987.79 × 22,899.91
4. Step 4: Simplify right side
   42,020.13x = 1,327,915,172.10
5. Step 5: Solve for x
   x = 1,327,915,172.10/42,020.13
6. Step 6: Final answer
   x = 31,601.88