Finding the Fourth Proportional to 42,022.70, 57,991.55 and 23,159.82

Step by Step Solution

1. Step 1: Write the proportion equation
   42,022.70 : 57,991.55 = 23,159.82 : x
2. Step 2: Convert to fraction form
   42,022.70/57,991.55 = 23,159.82/x
3. Step 3: Cross multiply
   42,022.70x = 57,991.55 × 23,159.82
4. Step 4: Simplify right side
   42,022.70x = 1,343,073,961.19
5. Step 5: Solve for x
   x = 1,343,073,961.19/42,022.70
6. Step 6: Final answer
   x = 31,960.68