Finding the Fourth Proportional to 42,019.94, 57,987.40 and 23,157.06

Step by Step Solution

1. Step 1: Write the proportion equation
   42,019.94 : 57,987.40 = 23,157.06 : x
2. Step 2: Convert to fraction form
   42,019.94/57,987.40 = 23,157.06/x
3. Step 3: Cross multiply
   42,019.94x = 57,987.40 × 23,157.06
4. Step 4: Simplify right side
   42,019.94x = 1,342,817,701.04
5. Step 5: Solve for x
   x = 1,342,817,701.04/42,019.94
6. Step 6: Final answer
   x = 31,956.68