Finding the Fourth Proportional to 92,984.72, 139,398.72 and 40,354.64

Step by Step Solution

1. Step 1: Write the proportion equation
   92,984.72 : 139,398.72 = 40,354.64 : x
2. Step 2: Convert to fraction form
   92,984.72/139,398.72 = 40,354.64/x
3. Step 3: Cross multiply
   92,984.72x = 139,398.72 × 40,354.64
4. Step 4: Simplify right side
   92,984.72x = 5,625,385,162.06
5. Step 5: Solve for x
   x = 5,625,385,162.06/92,984.72
6. Step 6: Final answer
   x = 60,497.95