Finding the Fourth Proportional to 42,121.30, 58,129.76 and 23,002.85

Step by Step Solution

1. Step 1: Write the proportion equation
   42,121.30 : 58,129.76 = 23,002.85 : x
2. Step 2: Convert to fraction form
   42,121.30/58,129.76 = 23,002.85/x
3. Step 3: Cross multiply
   42,121.30x = 58,129.76 × 23,002.85
4. Step 4: Simplify right side
   42,121.30x = 1,337,150,149.82
5. Step 5: Solve for x
   x = 1,337,150,149.82/42,121.30
6. Step 6: Final answer
   x = 31,745.23