Finding the Fourth Proportional to 42,122.21, 58,128.78 and 23,002.16

Step by Step Solution

1. Step 1: Write the proportion equation
   42,122.21 : 58,128.78 = 23,002.16 : x
2. Step 2: Convert to fraction form
   42,122.21/58,128.78 = 23,002.16/x
3. Step 3: Cross multiply
   42,122.21x = 58,128.78 × 23,002.16
4. Step 4: Simplify right side
   42,122.21x = 1,337,087,207.52
5. Step 5: Solve for x
   x = 1,337,087,207.52/42,122.21
6. Step 6: Final answer
   x = 31,743.05