Finding the Fourth Proportional to 42,019.83, 57,990.18 and 23,156.96

Step by Step Solution

1. Step 1: Write the proportion equation
   42,019.83 : 57,990.18 = 23,156.96 : x
2. Step 2: Convert to fraction form
   42,019.83/57,990.18 = 23,156.96/x
3. Step 3: Cross multiply
   42,019.83x = 57,990.18 × 23,156.96
4. Step 4: Simplify right side
   42,019.83x = 1,342,876,278.65
5. Step 5: Solve for x
   x = 1,342,876,278.65/42,019.83
6. Step 6: Final answer
   x = 31,958.16