Finding the Fourth Proportional to 92,408.57, 138,612.55 and 22,287.88

Step by Step Solution

1. Step 1: Write the proportion equation
   92,408.57 : 138,612.55 = 22,287.88 : x
2. Step 2: Convert to fraction form
   92,408.57/138,612.55 = 22,287.88/x
3. Step 3: Cross multiply
   92,408.57x = 138,612.55 × 22,287.88
4. Step 4: Simplify right side
   92,408.57x = 3,089,379,880.89
5. Step 5: Solve for x
   x = 3,089,379,880.89/92,408.57
6. Step 6: Final answer
   x = 33,431.75