Finding the Fourth Proportional to 42,108, 58,108.12 and 22,987.12

Step by Step Solution

1. Step 1: Write the proportion equation
   42,108 : 58,108.12 = 22,987.12 : x
2. Step 2: Convert to fraction form
   42,108/58,108.12 = 22,987.12/x
3. Step 3: Cross multiply
   42,108x = 58,108.12 × 22,987.12
4. Step 4: Simplify right side
   42,108x = 1,335,738,327.41
5. Step 5: Solve for x
   x = 1,335,738,327.41/42,108
6. Step 6: Final answer
   x = 31,721.72