Finding the Fourth Proportional to 42,019.88, 57,988.67 and 23,158.22

Step by Step Solution

1. Step 1: Write the proportion equation
   42,019.88 : 57,988.67 = 23,158.22 : x
2. Step 2: Convert to fraction form
   42,019.88/57,988.67 = 23,158.22/x
3. Step 3: Cross multiply
   42,019.88x = 57,988.67 × 23,158.22
4. Step 4: Simplify right side
   42,019.88x = 1,342,913,971.63
5. Step 5: Solve for x
   x = 1,342,913,971.63/42,019.88
6. Step 6: Final answer
   x = 31,959.02