Finding the Fourth Proportional to 42,019.13, 57,987.61 and 23,157.47

Step by Step Solution

1. Step 1: Write the proportion equation
   42,019.13 : 57,987.61 = 23,157.47 : x
2. Step 2: Convert to fraction form
   42,019.13/57,987.61 = 23,157.47/x
3. Step 3: Cross multiply
   42,019.13x = 57,987.61 × 23,157.47
4. Step 4: Simplify right side
   42,019.13x = 1,342,846,049.01
5. Step 5: Solve for x
   x = 1,342,846,049.01/42,019.13
6. Step 6: Final answer
   x = 31,957.97