Finding the Fourth Proportional to 42,012.81, 57,977.64 and 23,150.07

Step by Step Solution

1. Step 1: Write the proportion equation
   42,012.81 : 57,977.64 = 23,150.07 : x
2. Step 2: Convert to fraction form
   42,012.81/57,977.64 = 23,150.07/x
3. Step 3: Cross multiply
   42,012.81x = 57,977.64 × 23,150.07
4. Step 4: Simplify right side
   42,012.81x = 1,342,186,424.43
5. Step 5: Solve for x
   x = 1,342,186,424.43/42,012.81
6. Step 6: Final answer
   x = 31,947.08