Finding the Fourth Proportional to 42,002.99, 57,964.12 and 23,140.11

Step by Step Solution

1. Step 1: Write the proportion equation
   42,002.99 : 57,964.12 = 23,140.11 : x
2. Step 2: Convert to fraction form
   42,002.99/57,964.12 = 23,140.11/x
3. Step 3: Cross multiply
   42,002.99x = 57,964.12 × 23,140.11
4. Step 4: Simplify right side
   42,002.99x = 1,341,296,112.85
5. Step 5: Solve for x
   x = 1,341,296,112.85/42,002.99
6. Step 6: Final answer
   x = 31,933.35